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O-Ring JISB2401 G Series (for Fixing)

O-Ring JISB2401 G Series (for Fixing)
Check FAQ of this product (5 items)

NOK

NOK

Annular packing with an O-shaped (circular) cross section that can be used as a seal for a wide variety of fluids such as oil, water, air, and gas.
[Features]
·Features unique mix design, and designed materials also conform to JIS standard.
·Manufactured under consistent quality management system ranging from raw materials to products.
· Evaluation and analysis capabilities based on well-equipped testing facilities.
·In order to maintain the same sealing performance over a long period of time, the manufacturer selects materials and dimensions suitable for the usage conditions.
[Applications]
·Available for fixing and dynamic applications. If not suitable for usage conditions, cutting, swelling, pressing crack, etc., will occur.

(i)Caution

  • The product images are representative only. Specifications may vary by part number, including shape and color.
  • Items without parentheses are black.

PDF

Part Number

Configured Part Number is shown.

Drawing

O-ring drawing

O-ring

 
Drawing of cylindrical surface mount

For cylindrical surface mount

For Flat Surface Mount

For Flat Surface Mount

 
Drawing of groove shape, no backup ring

Groove shape: No backup ring

Drawing of groove shape, backup ring on one side (only for dynamic and cylindrical surface mount)

Groove shape: Backup ring on one side (only for dynamic and cylindrical surface mount)

Drawing of groove shape, backup ring on both sides (only for dynamic and cylindrical surface mount)

Groove shape: Backup ring on both sides (only for dynamic and cylindrical surface mount)

(Note) The chamfer finish is based on NOK's recommended value.

Product Specification

MaterialJIS symbolNBR-70-1NBR-90NBR-70-2VMQ-70FKM-70
Old JIS symbolClass 1 AClass 1 BClass 2Class 4CClass 4D
NOK symbolA305A105A122S503F201

Specifications Table

Part numberJIS dimension identification codeO-ring dimensions
Type
Dimension code		Material code　　
* In the *, please enter the material code on the left		[Reference]
old JIS
nominal number		Thickness
W		Inner diameter
d0		Tolerance of inner diameter d0Composite burr dimension
f
NBR-70-1NBR-90NBR-70-2VMQ-70FKM-70A305
(NBR-70-1)
A105
(NBR-90)
A122
(NBR-70-2)		S503
(VMQ-70)		F201
(FKM-70)
Class 1 A
A305		Class 1 B
A105		Class 2 A
A122		Class 4C
S503		Class 4D
F201
CO00200ABCLR6OR * G25-NG253.1 +/- 0.124.4+/- 0.25+/- 0.37+/- 0.30.12 or less
CO00201U0OR * G30-NG3029.4+/- 0.29+/- 0.43+/- 0.34
CO00202U2OR * G35-NG3534.4+/- 0.33+/- 0.49+/- 0.39
CO00203U2OR * G40-NG4039.4+/- 0.37+/- 0.55+/- 0.44
CO00204U2OR * G45-NG4544.4+/- 0.41+/- 0.61+/- 0.49
CO00205U0OR * G50-NG5049.4+/- 0.45+/- 0.67+/- 0.54
CO00206R8OR * G55-NG5554.4+/- 0.49+/- 0.73+/- 0.58
CO00207U0OR * G60-NG6059.4+/- 0.53+/- 0.79+/- 0.63
CO00208Q6OR * G65-NG6564.4+/- 0.57+/- 0.85+/- 0.68
CO00209U2OR * G70-NG7069.4+/- 0.61+/- 0.91+/- 0.73
CO00210U2OR * G75-NG7574.4+/- 0.65+/-0.97+/- 0.78
CO00211U2OR * G80-NG8079.4+/- 0.69+/- 1.03+/- 0.82
CO00212Q1OR * G85-NG8584.4+/- 0.73+/- 1.09+/- 0.87
CO00213U2OR * G90-NG9089.4+/- 0.77+/- 1.15+/- 0.92
CO00214U2OR * G95-NG9594.4+/- 0.81+/- 1.21+/-0.97
CO00215U2OR * G100-NG10099.4+/- 0.85+/- 1.27+/- 1.02
CO00216U2OR * G105-NG105104.4+/- 0.87+/- 1.30+/- 1.04
CO00217U2OR * G110-NG110109.4+/- 0.91+/-1.36+/- 1.09
CO00218U2OR * G115-NG115114.4+/- 0.94+/- 1.41+/- 1.12
CO00219R0OR * G120-NG120119.4+/- 0.98+/- 1.47+/- 1.17
CO00220U2OR * G125-NG125124.4+/- 1.01+/- 1.51+/- 1.21
CO00221U2OR * G130-NG130129.4+/- 1.05+/- 1.57+/- 1.26
CO00222U2OR * G135-NG135134.4+/- 1.08+/- 1.62+/- 1.29
CO00223X0OR * G140-NG140139.4+/- 1.12+/- 1.68+/- 1.34
CO00224U2OR * G145-NG145144.4+/- 1.16+/- 1.74+/- 1.39
CO00225ABCLU3OR * G150-NG1505.7 +/- 0.13149.3+/- 1.19+/- 1.78+/- 1.420.16 or less
CO00226U3OR * G155-NG155154.3+/- 1.23+/- 1.84+/- 1.47
CO00227U3OR * G160-NG160159.3+/- 1.26+/- 1.89+/- 1.51
CO00228U3OR * G165-NG165164.3+/- 1.30+/- 1.95+/- 1.56
CO00229U3OR * G170-NG170169.3+/- 1.33+/- 1.99+/- 1.59
CO00230U3OR * G175-NG175174.3+/- 1.37+/- 2.05+/- 1.64
CO00231W0OR * G180-NG180179.3+/- 1.40+/- 2.10+/- 1.68
CO00232U3OR * G185-NG185184.3+/- 1.44+/- 2.16+/- 1.72
CO00233U3OR * G190-NG190189.3+/- 1.47+/- 2.20+/- 1.76
CO00234U3OR * G195-NG195194.3+/- 1.51+/- 2.26+/- 1.81
CO00235U3OR * 200 G-NG200199.3+/- 1.55+/- 2.32+/- 1.86
CO01968*---H0OR * G205-N*G205*204.3+/- 1.58-+/- 1.90
CO00236BCLV0OR * G210-NG210209.3+/- 1.61+/- 2.41+/- 1.93
CO03303*---O0OR * G215-N*G215*214.3+/- 1.65-+/- 1.98
CO00237BCLU3OR * G220-NG220219.3+/- 1.68+/- 2.52+/- 2.01
CO02011*---P0OR * G225-NG225*224.3+/- 1.71-+/- 2.05
CO00238BCLU3OR * G230-NG230229.3+/- 1.73+/- 2.59+/- 2.07
CO02031*---O0OR * G235-N*G235*234.3+/- 1.78-+/- 2.14
CO00239BCLU3OR * G240-NG240239.3+/- 1.81+/- 2.71+/- 2.17
CO02060*---G0OR * G245-N*G245*244.3+/- 1.85-+/- 2.22
CO00240BCLU3OR * G250-NG250249.3+/- 1.88+/- 2.82+/- 2.25
CO02079*---H0OR * G255-N*G255*254.3+/- 1.91-+/- 2.29
CO00241BCLU3OR * G260-NG260259.3+/- 1.94+/- 2.91+/- 2.32
CO06543*---H0OR * G265-N*G265*264.3+/- 1.98-+/- 2.38
CO00242BCLU3OR * G270-NG270269.4+/- 2.01+/- 3.01+/- 2.41
CO02100*---H0OR * G275-N*G275*274.3+/- 2.04-+/- 2.45
CO00243BCLU3OR * G280-NG280279.3+/- 2.07+/- 3.10+/- 2.48
CO03210*---H0OR * G285-N*G285*284.3+/- 2.11-+/- 2.53
CO00244BCLU3OR * G290-NG290289.3+/- 2.14+/- 3.21+/- 2.56
CO06566*---P0OR * G295-NG295*294.3+/- 2.17-+/- 2.60
CO00245BCLU3OR * G300-NG300299.3+/- 2.20+/- 3.30+/- 2.64
CO01137*---G0OR * G305-N*G305*304.3+/-2.24-+/- 2.69
CO02158*OR * G310-N*G310*309.3+/-2.27+/-2.72
CO08811*OR * G315-N*G315*314.3+/- 2.30+/- 2.76
CO02176*OR * G320-N*G320*319.3+/- 2.33+/- 2.80
CO08812*OR * G325-N*G325*324.3+/- 2.36+/-2.83
CO08813*OR * G330-N*G330*329.3+/- 2.39+/- 2.87
CO08814*OR * G335-N*G335*334.3+/- 2.42+/- 2.90
CO02206*OR * G340-N*G340*339.3+/- 2.45+/- 2.94
CO02216*OR * G345-N*G345*344.3+/- 2.48+/- 2.98
CO02223*OR * G350-N*G350*349.3+/- 2.51+/- 3.01
CO08815*OR * G355-N*G355*354.3+/- 2.54+/- 3.05
CO02244*OR * G360-N*G360*359.3+/- 2.57+/- 3.08
CO08816*OR * G365-N*G365*364.4+/- 2.60+/- 3.12
CO08817*OR * G370-N*G370*369.3+/- 2.63+/- 3.16
CO08818*OR * G375-N*G375*374.3+/- 2.67+/- 3.20
CO02272*OR * G380-N*G380*379.3+/- 2.70+/- 3.24
CO08819*OR * G385-N*G385*384.3+/- 2.73+/- 3.28
CO02287*OR * G390-N*390 G*389.3+/- 2.77+/- 3.32
CO08820*OR * G395-N*G395*394.3+/- 2.79+/- 3.35
CO02301*OR * G400-N*G400*399.3+/- 2.82+/- 3.38
CO08821*OR * G405-N*G405*404.3+/- 3.00+/- 3.600.16 or less
CO08822*OR * G410-N*G410*409.3
CO02336*OR * G415-N*G415*414.3
CO08823*OR * G420-N*G420*419.3
CO02358*OR * G425-N*G425*424.3
CO08824*OR * G430-N*G430*429.3
CO08825*OR * G435-N*G435*434.3
CO08826*OR * G440-N*G440*439.3
CO08827*OR * G445-N*G445*444.3
CO02417*OR * G450-N*G450*449.3
CO08828*OR * G455-N*G455*454.3+/- 3.30+/- 4.000.16 or less
CO02441*OR * G460-N*G460*459.3
CO06715*OR * G465-N*G465*464.3
CO02460*OR * G470-N*G470*469.3
CO08829*OR * G475-N*G475*474.3
CO08830*OR * G480-N*G480*479.3
CO08831*OR * G485-N*G485*484.3
CO08832*OR * G490-N*G490*489.3
CO08833*OR * G495-N*G495*494.3
CO08834*OR * G500-N*G500*499.3

The JIS dimension identification code represents model + material standard + dimension standard + class of product appearance.
For nominal numbers with *, the rubber materials are limited to A305 and F201 only.
JASO also has the same dimensions, and has class 3 (SBR material), class 4 E, class 5, and H materials.

 
JIS nominal numberGroove section dimensions
d DimensionD dimensionG dimension (tolerance+0.25
0		)H DimensionR dimensionMax misalignment (TIR) of
D and d for cylindrical
surface mount and dynamic
DimensionsToleranceDimensionsToleranceNo backup
ring		Backup ring on one
side		Backup ring on
both sides		H +/- 0.05Maximum value
G25250
-0.10		30+0.10
0		4.15.67.32.40.70.08
G303035
G353540
G404045
G454550
G505055
G555560
G606065
G656570
G707075
G757580
G808085
G858590
G909095
G9595100
G100100105
G105105110
G110110115
G115115120
G120120125
G125125130
G130130135
G135135140
G140140145
G145145150
G1501500
-0.10		160+0.10
0		7.59.011.54.60.80.10
G155155165
G160160170
G165165175
G170170180
G175175185
G180180190
G185185195
G190190200
G195195205
G200200210
G205205215
G210210220
G215215225
G220220230
G225225235
G230230240
G235235245
G240240250
G245245255
G250250260
G255255265
G260260270
G265265275
G270270280
G275275285
G280280290
G285285295
G290290300
G295295305
G300300310
G305305315
G310310320
G315315325
G320320330
G325325335
G330330340
G335335345
G340340350
G345345355
G350350360
G355355365
G360360370
G365365375
G370370380
G375375385
G380380390
G385385395
390G390400
G395395405
G400400410
G405405415
G410410420
G415415425
G420420430
G425425435
G430430440
G435435445
G440440450
G445445455
G450450460
G455455465
G460460470
G465465475
G470470480
G475475485
G480480490
G485485495
G490490500
G495495505
G500500510

Selection Support

O-Ring Selection Method

An O-ring is an annular packing with an O-shaped (circular) cross section, and is generally fitted in a groove and compressed appropriately to seal a wide variety of fluids such as oil, water, air, and gas.
Available for fixing and dynamic applications. If not suitable for usage conditions, cutting, swelling, pressing crack, etc., will occur.
In order to maintain the same sealing performance over a long period of time, it is necessary to select materials and dimensions suitable for the usage conditions.

When making a selection, it is necessary to consider the contents of Table 1-1.

 

Table 1-1

ItemsCatalog pagePurpose
a Operating temperature8Materials selection
b Object to be sealed9
c Pressure magnitude15Selection of material hardness. Necessity of backup ring.
d Instructions
(for dynamic/fixing)		22 to 59,
64		For fixing: JIS P/G/V series, NOK S/SS series, AS568 series, former JASO series, ISO equivalent series, WEX series,
NOK polyurethane elastomer material P/G series, SP treatment O-ring series

Model number display

When ordering, specify (1) the JIS dimension identification code and (2) the NOK part number.

Example 1) If you want to purchase NBR-70-1 material with an inner diameter of 24.4 and a thickness of 3.1

  • JIS dimension identification code: OR NBR-70-1 G25-N
  • NOK part number: CO 00200 A

Example 2) If you want to purchase FKMI-70 material with an inner diameter of 24.4 and a thickness of 3.1

  • JIS dimension identification code: OR FKM-70 G25-N
  • NOK part number: CO 00200 R6

Cautions and Prohibitions

Precautions for storage and storage period

Please note the following points when storing O-rings.

  • Do not open the package unnecessarily. Contaminant or dust may stick to it, or it may be scratched.
  • When storing a product that has been opened, be careful not to let contaminant or dust adhere to it or mix it in, or scratch it.
  • Store it in a place away from direct sunlight with low humidity. Ultraviolet ray and moisture can accelerate the deterioration and dimensional changes of rubber materials.
  • Do not place it near high temperature heat sources (boilers, stoves, etc.). Heat can accelerate the deterioration of rubber materials.
  • Do not hang the O-ring on a nail, steel wire, etc., or hang it on a string, as this may cause the O-ring to deform.
  • Nitrile rubber (NBR) and styrene-butadiene rubber (SBR) may develop ozone cracks (cleavage-like cracks across the entire O-ring surface) when stored in an open or otherwise exposed state to the air.
  • In particular, avoid storing in the following conditions, as it will accelerate the occurrence of such cracks.
    Storing near electric motors (copy machines, etc.) that generate ozone easily.
    Storing of the product while it is stretched. (This includes storing with the O-ring installed.)
 

Storage period

ProductMaterialStorage period
Single rubber productNitrile rubber (NBR)10 years
Silicone rubber (VMQ)20 years
Fluoroelastomer (FKM)20 years

The storage period are for products that are stored indoors in standard packaging, away from direct sunlight, high temperatures, and high humidity.

Behind the Scenes

 

NOK has established the Shonan Development Center to further reinforce the material technologies it has cultivated over many years.
NOK believes that this center can conduct more comprehensive basic research than ever before, and that the company has established a system that enables it to develop materials that meet an even greater variety of uses and requirements.
In addition, NOK is expanding internationally through its global branches and also completely rebuilt Kumamoto Plant, the hub of the O-ring production in April 2007,
with the aim of making a further leap forward. NOK is proud that this new plant is in a state where the company can aim for further quality improvement and stability by creating a better premises environment.
NOK's o-rings have already earned the trust of a wide range of industries around the world, but the company is not satisfied with the current situation and would like to continue to meet the diversifying and sophisticated needs of customers through continuous material development and production of highly reliable and high-quality o-rings.

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Part Number
CO0200A
CO0200B
CO0200L
CO0200R6
CO0201A
CO0201B
CO0201L
CO0201U2
CO0202A
CO0202B
CO0202L
CO0202U2
CO0203A
CO0203B
CO0203L
CO0203U2
CO0204A
CO0204B
CO0204L
CO0204U2
CO0205A
CO0205B
CO0205L
CO0205U2
CO0206A
CO0206B
CO0206L
CO0206R8
CO0207A
CO0207B
CO0207L
CO0207U2
CO0208A
CO0208B
CO0208L
CO0208Q6
CO0209A
CO0209B
CO0209L
CO0209U2
CO0210A
CO0210B
CO0210L
CO0210U2
CO0211A
CO0211B
CO0211L
CO0211U2
CO0212A
CO0212B
CO0212L
CO0212Q2
CO0213A
CO0213B
CO0213L
CO0213U2
CO0214A
CO0214B
CO0214L
CO0214U2
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipI.D. d
(mm) 		Thickness W
(mm) 		Material Environment, application O.D.
(mm) 		Old JIS Bearing Number Material (JIS Symbol) Hardness Model Number Notation

MYR 2.47

1 Piece(s) 4 Day(s) or more 24.43.1Nitrile RubberMineral Oil Resistant30.6G25Class 1A70Type Dimension Code

MYR 2.54

1 Piece(s) 4 Day(s) or more 24.43.1Nitrile RubberMineral Oil Resistant30.6G25Class 1B90Type Dimension Code

MYR 3.65

1 Piece(s) 4 Day(s) or more 24.43.1Silicone RubberHeat Resistant30.6G25Class 4C70Type Dimension Code

MYR 9.94

1 Piece(s) 4 Day(s) or more 24.43.1Fluorine RubberHeat Resistant30.6G25Class 4D70Type Dimension Code

MYR 2.54

1 Piece(s) 4 Day(s) or more 29.43.1Nitrile RubberMineral Oil Resistant35.6G30Class 1A70Type Dimension Code

MYR 2.86

1 Piece(s) 4 Day(s) or more 29.43.1Nitrile RubberMineral Oil Resistant35.6G30Class 1B90Type Dimension Code

MYR 4.54

1 Piece(s) 4 Day(s) or more 29.43.1Silicone RubberHeat Resistant35.6G30Class 4C70Type Dimension Code

MYR 12.30

1 Piece(s) 4 Day(s) or more 29.43.1Fluorine RubberHeat Resistant35.6G30Class 4D70Type Dimension Code

MYR 2.60

1 Piece(s) 4 Day(s) or more 34.43.1Nitrile RubberMineral Oil Resistant40.6G35Class 1A70Type Dimension Code

MYR 3.03

1 Piece(s) 4 Day(s) or more 34.43.1Nitrile RubberMineral Oil Resistant40.6G35Class 1B90Type Dimension Code

MYR 5.27

1 Piece(s) 4 Day(s) or more 34.43.1Silicone RubberHeat Resistant40.6G35Class 4C70Type Dimension Code

MYR 13.53

1 Piece(s) 4 Day(s) or more 34.43.1Fluorine RubberHeat Resistant40.6G35Class 4D70Type Dimension Code

MYR 2.84

1 Piece(s) 4 Day(s) or more 39.43.1Nitrile RubberMineral Oil Resistant45.6G40Class 1A70Type Dimension Code

MYR 3.65

1 Piece(s) 4 Day(s) or more 39.43.1Nitrile RubberMineral Oil Resistant45.6G40Class 1B90Type Dimension Code

MYR 6.17

1 Piece(s) 4 Day(s) or more 39.43.1Silicone RubberHeat Resistant45.6G40Class 4C70Type Dimension Code

MYR 9.55

1 Piece(s) 4 Day(s) or more 39.43.1Fluorine RubberHeat Resistant45.6G40Class 4D70Type Dimension Code

MYR 3.03

1 Piece(s) 4 Day(s) or more 44.43.1Nitrile RubberMineral Oil Resistant50.6G45Class 1A70Type Dimension Code

MYR 3.93

1 Piece(s) 4 Day(s) or more 44.43.1Nitrile RubberMineral Oil Resistant50.6G45Class 1B90Type Dimension Code

MYR 6.80

1 Piece(s) 4 Day(s) or more 44.43.1Silicone RubberHeat Resistant50.6G45Class 4C70Type Dimension Code

MYR 13.31

1 Piece(s) 4 Day(s) or more 44.43.1Fluorine RubberHeat Resistant50.6G45Class 4D70Type Dimension Code

MYR 3.10

1 Piece(s) 2 Day(s) or more 49.43.1Nitrile RubberMineral Oil Resistant55.6G50Class 1A70Type Dimension Code

MYR 3.93

1 Piece(s) 4 Day(s) or more 49.43.1Nitrile RubberMineral Oil Resistant55.6G50Class 1B90Type Dimension Code

MYR 6.90

1 Piece(s) 4 Day(s) or more 49.43.1Silicone RubberHeat Resistant55.6G50Class 4C70Type Dimension Code

MYR 15.61

1 Piece(s) 4 Day(s) or more 49.43.1Fluorine RubberHeat Resistant55.6G50Class 4D70Type Dimension Code

MYR 3.65

1 Piece(s) 4 Day(s) or more 54.43.1Nitrile RubberMineral Oil Resistant60.6G55Class 1A70Type Dimension Code

MYR 4.54

1 Piece(s) 4 Day(s) or more 54.43.1Nitrile RubberMineral Oil Resistant60.6G55Class 1B90Type Dimension Code

MYR 7.80

1 Piece(s) 4 Day(s) or more 54.43.1Silicone RubberHeat Resistant60.6G55Class 4C70Type Dimension Code

MYR 12.86

1 Piece(s) 4 Day(s) or more 54.43.1Fluorine RubberHeat Resistant60.6G55Class 4D70Type Dimension Code

MYR 3.93

1 Piece(s) 4 Day(s) or more 59.43.1Nitrile RubberMineral Oil Resistant65.6G60Class 1A70Type Dimension Code

MYR 4.54

1 Piece(s) 4 Day(s) or more 59.43.1Nitrile RubberMineral Oil Resistant65.6G60Class 1B90Type Dimension Code

MYR 8.26

1 Piece(s) 4 Day(s) or more 59.43.1Silicone RubberHeat Resistant65.6G60Class 4C70Type Dimension Code

MYR 16.40

1 Piece(s) 4 Day(s) or more 59.43.1Fluorine RubberHeat Resistant65.6G60Class 4D70Type Dimension Code

MYR 3.69

1 Piece(s) 4 Day(s) or more 64.43.1Nitrile RubberMineral Oil Resistant70.6G65Class 1A70Type Dimension Code

MYR 5.11

1 Piece(s) 4 Day(s) or more 64.43.1Nitrile RubberMineral Oil Resistant70.6G65Class 1B90Type Dimension Code

MYR 8.87

1 Piece(s) 4 Day(s) or more 64.43.1Silicone RubberHeat Resistant70.6G65Class 4C70Type Dimension Code

MYR 19.82

1 Piece(s) 4 Day(s) or more 64.43.1Fluorine RubberHeat Resistant70.6G65Class 4D70Type Dimension Code

MYR 3.88

1 Piece(s) 4 Day(s) or more 69.43.1Nitrile RubberMineral Oil Resistant75.6G70Class 1A70Type Dimension Code

MYR 5.27

1 Piece(s) 4 Day(s) or more 69.43.1Nitrile RubberMineral Oil Resistant75.6G70Class 1B90Type Dimension Code

MYR 9.32

1 Piece(s) 4 Day(s) or more 69.43.1Silicone RubberHeat Resistant75.6G70Class 4C70Type Dimension Code

MYR 19.82

1 Piece(s) 4 Day(s) or more 69.43.1Fluorine RubberHeat Resistant75.6G70Class 4D70Type Dimension Code

MYR 4.38

1 Piece(s) 4 Day(s) or more 74.43.1Nitrile RubberMineral Oil Resistant80.6G75Class 1A70Type Dimension Code

MYR 5.27

1 Piece(s) 4 Day(s) or more 74.43.1Nitrile RubberMineral Oil Resistant80.6G75Class 1B90Type Dimension Code

MYR 11.12

1 Piece(s) 4 Day(s) or more 74.43.1Silicone RubberHeat Resistant80.6G75Class 4C70Type Dimension Code

MYR 22.36

1 Piece(s) 4 Day(s) or more 74.43.1Fluorine RubberHeat Resistant80.6G75Class 4D70Type Dimension Code

MYR 4.26

1 Piece(s) 4 Day(s) or more 79.43.1Nitrile RubberMineral Oil Resistant85.6G80Class 1A70Type Dimension Code

MYR 6.35

1 Piece(s) 4 Day(s) or more 79.43.1Nitrile RubberMineral Oil Resistant85.6G80Class 1B90Type Dimension Code

MYR 11.12

1 Piece(s) 4 Day(s) or more 79.43.1Silicone RubberHeat Resistant85.6G80Class 4C70Type Dimension Code

MYR 22.36

1 Piece(s) 4 Day(s) or more 79.43.1Fluorine RubberHeat Resistant85.6G80Class 4D70Type Dimension Code

MYR 5.27

1 Piece(s) 4 Day(s) or more 84.43.1Nitrile RubberMineral Oil Resistant90.6G85Class 1A70Type Dimension Code

MYR 6.35

1 Piece(s) 4 Day(s) or more 84.43.1Nitrile RubberMineral Oil Resistant90.6G85Class 1B90Type Dimension Code

MYR 13.53

1 Piece(s) 4 Day(s) or more 84.43.1Silicone RubberHeat Resistant90.6G85Class 4C70Type Dimension Code

MYR 22.36

1 Piece(s) 4 Day(s) or more 84.43.1Fluorine RubberHeat Resistant90.6G85Class 4D70Type Dimension Code

MYR 5.90

1 Piece(s) 4 Day(s) or more 89.43.1Nitrile RubberMineral Oil Resistant95.6G90Class 1A70Type Dimension Code

MYR 7.35

1 Piece(s) 4 Day(s) or more 89.43.1Nitrile RubberMineral Oil Resistant95.6G90Class 1B90Type Dimension Code

MYR 13.53

1 Piece(s) 4 Day(s) or more 89.43.1Silicone RubberHeat Resistant95.6G90Class 4C70Type Dimension Code

MYR 25.39

1 Piece(s) 4 Day(s) or more 89.43.1Fluorine RubberHeat Resistant95.6G90Class 4D70Type Dimension Code

MYR 4.52

1 Piece(s) 4 Day(s) or more 94.43.1Nitrile RubberMineral Oil Resistant100.6G95Class 1A70Type Dimension Code

MYR 7.35

1 Piece(s) 4 Day(s) or more 94.43.1Nitrile RubberMineral Oil Resistant100.6G95Class 1B90Type Dimension Code

MYR 11.07

1 Piece(s) 4 Day(s) or more 94.43.1Silicone RubberHeat Resistant100.6G95Class 4C70Type Dimension Code

MYR 28.71

1 Piece(s) 4 Day(s) or more 94.43.1Fluorine RubberHeat Resistant100.6G95Class 4D70Type Dimension Code

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Basic Information

Type O-Ring Types G (For Fixing)

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218 Part Numbers

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Specification/Dimensions

  • I.D. d(mm)

    • 24.4
    • 29.4
    • 34.4
    • 39.4
    • 44.4
    • 49.4
    • 54.4
    • 59.4
    • 64.4
    • 69.4
    • 74.4
    • 79.4
    • 84.4
    • 89.4
    • 94.4
    • 99.4
    • 104.4
    • 109.4
    • 114.4
    • 119.4
    • 124.4
    • 129.4
    • 134.4
    • 139.4
    • 144.4
    • 149.3
    • 154.3
    • 159.3
    • 164.3
    • 169.3
    • 174.3
    • 179.3
    • 184.3
    • 189.3
    • 194.3
    • 199.3
    • 204.3
    • 209.3
    • 214.3
    • 219.3
    • 224.3
    • 229.3
    • 234.3
    • 239.3
    • 244.3
    • 249.3
    • 259.3
    • 264.3
    • 269.3
    • 274.3
    • 279.3
    • 284.3
    • 289.3
    • 294.3
    • 299.3
    • 309.3
    • 319.3
    • 324.3
    • 334.3
    • 344.3
    • 349.3
    • 359.3
    • 364.3
    • 384.3
    • 399.3

    Clear

  • Thickness W(mm)

    • 3.1
    • 5.7

    Clear

  • Material

    • Nitrile Rubber
    • Silicone Rubber
    • Fluorine Rubber

    Clear

  • Environment, application

    • Mineral Oil Resistant
    • Heat Resistant

    Clear

  • Old JIS Bearing Number

    • G25
    • G30
    • G35
    • G40
    • G45
    • G50
    • G55
    • G60
    • G65
    • G70
    • G75
    • G80
    • G85
    • G90
    • G95
    • G100
    • G105
    • G110
    • G115
    • G120
    • G125
    • G130
    • G135
    • G140
    • G145
    • G150
    • G155
    • G160
    • G165
    • G170
    • G175
    • G180
    • G185
    • G190
    • G195
    • G200
    • G205
    • G210
    • G215
    • G220
    • G225
    • G230
    • G235
    • G240
    • G245
    • G250
    • G260
    • G265
    • G270
    • G275
    • G280
    • G285
    • G290
    • G295
    • G300
    • G310
    • G320
    • G325
    • G335
    • G345
    • G350
    • G360
    • G365
    • G385
    • G400

    Clear

  • Material (JIS Symbol)

    • Class 1A
    • Class 1B
    • Class 4C
    • Class 4D

    Clear

  • Hardness

    • 70
    • 90

    Clear

  • Model Number Notation

    • Old JIS Bearing Number
    • Type Dimension Code

    Clear

  • type

    • G

    Clear

Days to Ship

    • All
    • 2 Day(s) or Less
    • 4 Day(s) or Less
    • 8 Day(s) or Less
    • 9 Day(s) or Less
    • 10 Day(s) or Less

    Clear

Specify Alterations

Frequently asked question (FAQ)

Question: Please tell me when to replace the O-ring and its lifespan.
Answer: It depends on its material & the usage conditions, so we cannot answer the question of lifespan.
Question: Can I reuse the O-ring I removed once?
Answer: No. Make sure to replace it with a new O-ring.
Question: What should I be careful about when storing O-rings?
Answer: When storing O-rings, please be aware of the following:
•Do not open the packaging unnecessarily, as this may result in foreign objects or dirt adhering to the ring or scratches.
•Store in a low humidity area away from direct sunlight.
•Do not store near a high-temperature heat source.
•Do not hang the ring on a nail or string.
Question: What is the storage period for O-rings?
Answer: This applies to O-rings stored in a sealed package in a warehouse away from direct sunlight, high temperatures, and high humidity.
•NBR: 10-year
•Silicone Rubber (VMQ): 20-year
•FKM: 20-year
•EPDM: 20-year
Question: Can JIS B 2401 - G Series O-Rings be used with aggressive chemicals?
Answer: Yes, but material selection is crucial:
•FKM (Viton®) is highly resistant to fuels, solvents, and aggressive chemicals.
•NBR is suitable for petroleum-based fluids but not strong acids or ozone exposure.
•VMQ (Silicone) is used in applications requiring high-temperature resistance but has poor resistance to petroleum-based fluids.

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