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AS568 (ARP568) O-Ring (Packing and Gasket) (Part Numbers)

AS568 (ARP568) O-Ring (Packing and Gasket)

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  • AS568-□□□-4C ( 4-C:Silicon rubber )
  • AS568-□□□-4D ( 4-D:Fluororubber )
  • AS568-□□□-1A ( 1-A:Nitrile rubber )
  • AS568-□□□-1B ( 1-B:Nitrile rubber )
  • AS568-□□□-2 ( 2:Nitrile rubber )
  • Volume Discount

[Features]
·It has good sealing performance with self-sealing action despite its simple structure
·Stable sealing performance even under high pressure
·Compact installation space and easy installation
·Sealing is not directional and is possible from both sides
[Applications]
·Can be used for various machines
·The material can be selected depending on the usage conditions, so it can be used in a wide range of applications, both for movement and for stationary use

PDF

Japanese Only

Part Number

Configured Part Number is shown.

Drawing

Product Specification

This synthetic rubber ring was made for the purpose of sealing liquid and gases in reciprocating motion or fixed areas

This synthetic rubber ring was made for the purpose of sealing liquid and gases in reciprocating motion or fixed areas

Specifications Table

MaterialJIS StandardOld JIS standardColorHardness
Type A durometer
Operating temperature range
Nitrile RubberNBR-70-1Class 1 ABlackA70 +/- 5-30℃ to +100℃
NBR-90Class 1 BA90 +/- 5-25℃ to +100℃
NBR-70-2Class 2A70 +/- 5-25°C to +80°C
Silicone rubberVMQ-70Class 4CVermilionA70 +/- 5-50°C to +200°C
FluoroelastomerFKM-70Class 4DBlackA70 +/- 5-15°C to +200°C
AS568
Nominal number
O-ring nominal size (in)O-ring actual size (mm)AN 6227
1516
WdDd2d1
0011/321/323/321.02+/- 0.070.74+/- 0.10-
0023/643/649/641.271.07-
0031/161/163/161.521.42-
0041/165/6413/641.781.78+/- 0.12-
0051/163/327/322.57-
0061/161/81/42.901
0071/165/329/323.682
0081/163/165/164.473
0091/167/3211/325.284
0101/161/43/86.075
0111/165/167/167.656
0121/163/81/29.257
0131/167/169/1610.82-
0141/161/25/812.42-
0151/169/1611/1614.00-
0161/165/83/415.60-
0171/1611/1613/1617.17-
0181/163/47/818.77-
0191/1613/1615/1620.35+/- 0.15-
0201/167/8121.95-
0211/1615/161 1/1623.52-
0221/1611 1/825.12-
0231/161 1/161 3/1626.70-
0241/161 1/81 1/428.30-
0251/161 3/161 5/1629.87-
0261/161 1/41 3/831.47-
0271/161 5/161 7/1633.05-
0281/161 3/81 1/234.65-
0291/161 1/21 5/837.82+/- 0.25-
0301/161 5/81 3/441.00-
0311/161 3/41 7/844.17-
0321/161 7/8247.35-
0331/1622 1/850.52-
0341/162 1/82 1/453.70-
0351/162 1/42 3/856.87-
0361/162 3/82 1/260.05-
0371/162 1/22 5/863.22-
0381/162 5/82 3/466.40-
0391/162 3/42 7/869.57+/- 0.38-
0401/162 7/8372.75-
0411/1633 1/875.92-
0421/163 1/43 3/882.27-
0431/163 1/23 5/888.62-

Product Feature Details

  • Generally installed in a groove, it exerts its sealing function through the stress generated by moderate compression.
  • This product is easier to install than any other packing, takes up less space, and can be done the same way by anyone, and its self-sealing action provides stable sealing performance even under high pressure using only an O-ring.
  • It can be installed with a small amount of compression (squeeze) and has relatively low kinetic frictional resistance for higher efficiency.
  • It does not cause overtightening of nuts when used for fixing.
O-ring (Packing and Gasket) AS568 (ARP568) Features

Principle of action
Fig. 1: When an O-ring seals a fluid with no or low pressure, the seal is maintained by a squeeze equivalent to a percentage of the cross-sectional diameter of the O-ring.
Fig. 2: As the fluid pressure increases, as shown in the figure, the crushed O-ring in the groove is pushed from the pressure side, shifting to one side and sealing with a self-sealing effect.
Fig. 3: If the pressure increases further and exceeds 10 MPa, the softness of the rubber will cause the O-ring to be damaged by protruding into the clearance.
Fig. 4: To prevent this, if there is pressure on the opposite side of the pressure direction or on both sides, attach backup rings made of leather or fluoropolymer to both sides of the O-ring.

Cautions and Prohibitions

Cautions

  • The dynamic O-ring smooths the sliding metal surface finish. (It should be about 1.5S.) The inside of the groove should be about 3S.
  • If the reciprocating sliding surface has holes, etc., take care to protect them.
  • Do not use more than 2 O-rings in the same location.
  • Pay attention to the groove design.
  • If the O-ring breaks down, it will suddenly leak and cause an accident, so be sure to replace it at the end of its useful life for dynamic applications.
  • Due to its rubbery nature, it will age in the air, so care must be taken when storing it.
Part Number
AS568-275-4D
AS568-276-1A
AS568-276-4D
AS568-277-1A
AS568-278-4D
AS568-279-1A
AS568-280-1A
AS568-281-1A
AS568-282-1A
AS568-283-1A
AS568-284-1A
AS568-284-4D
AS568-309-1A
AS568-310-1A
AS568-311-1A
AS568-312-1A
AS568-313-1A
AS568-314-1A
AS568-316-1A
AS568-316-4C
AS568-317-1A
AS568-318-1A
AS568-319-1A
AS568-320-1A
AS568-321-1A
AS568-322-1A
AS568-323-1A
AS568-324-1A
AS568-325-1A
AS568-325-4C
AS568-325-4D
AS568-326-1A
AS568-326-4D
AS568-327-1A
AS568-327-4D
AS568-328-1A
AS568-329-1A
AS568-329-4D
AS568-330-1A
AS568-330-1B
AS568-331-1A
AS568-332-1A
AS568-333-1A
AS568-334-1A
AS568-335-1A
AS568-336-1A
AS568-337-1A
AS568-337-4C
AS568-337-4D
AS568-338-1A
AS568-339-1A
AS568-340-1A
AS568-341-1A
AS568-343-1A
AS568-344-1A
AS568-346-1A
AS568-347-1A
AS568-348-1A
AS568-349-1A
AS568-351-1A
AS568-354-1A
AS568-354-4D
AS568-355-1A
AS568-356-1A
AS568-357-1A
AS568-357-4D
AS568-358-1A
AS568-358-4C
AS568-359-1A
AS568-360-1A
AS568-361-1A
AS568-362-4C
AS568-363-1A
AS568-364-1A
AS568-366-1A
AS568-367-1A
AS568-368-1A
AS568-369-1A
AS568-370-1A
AS568-373-1A
AS568-373-4D
AS568-375-1A
AS568-375-4D
AS568-376-4D
AS568-377-1A
AS568-377-4D
AS568-378-1A
AS568-378-4D
AS568-379-1A
AS568-381-1A
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSType I.D. d1
(mm)
Thickness d2
(mm)
Material Type of Material Nominal Number

MYR 113.33

1 Piece(s)Available 10 Day(s) or more 10-266.293.53[Fluoroelastomer] Fluorine RubberClass 4 D275

MYR 35.06

1 Piece(s)Available 4 Day(s) or more 10-278.993.53Nitrile RubberA Type A276

MYR 117.09

1 Piece(s)Available 10 Day(s) or more 10-278.993.53[Fluoroelastomer] Fluorine RubberClass 4 D276

MYR 35.06

1 Piece(s)Available 10 Day(s) or more 10-291.693.53Nitrile RubberA Type A277

MYR 135.81

1 Piece(s)Available 4 Day(s) or more 10-304.393.53[Fluoroelastomer] Fluorine RubberClass 4 D278

MYR 37.48

1 Piece(s)Available 4 Day(s) or more 10-329.793.53Nitrile RubberA Type A279

MYR 37.48

1 Piece(s)Available 10 Day(s) or more 10-355.193.53Nitrile RubberA Type A280

MYR 37.48

1 Piece(s)Available 4 Day(s) or more 10-380.593.53Nitrile RubberA Type A281

MYR 51.92

1 Piece(s)Available 4 Day(s) or more 10-405.263.53Nitrile RubberA Type A282

MYR 51.92

1 Piece(s)Available 10 Day(s) or more 10-430.663.53Nitrile RubberA Type A283

MYR 51.92

1 Piece(s)Available 12 Day(s) or more 10-456.063.53Nitrile RubberA Type A284

MYR 199.47

1 Piece(s)Available 17 Day(s) or more 10-456.063.53[Fluoroelastomer] Fluorine RubberClass 4 D284

MYR 8.02

1 Piece(s)Available 10 Day(s) or more 10-10.465.33Nitrile RubberA Type A309

MYR 5.56

1 Piece(s)Available 17 Day(s) or more 10-12.065.33Nitrile RubberA Type A310

MYR 5.56

1 Piece(s)Available 10 Day(s) or more 10-13.645.33Nitrile RubberA Type A311

MYR 8.87

1 Piece(s)Available 10 Day(s) or more 10-15.245.33Nitrile RubberA Type A312

MYR 6.12

1 Piece(s)Available 10 Day(s) or more 10-16.815.33Nitrile RubberA Type A313

MYR 6.12

1 Piece(s)Available 10 Day(s) or more 10-18.425.33Nitrile RubberA Type A314

MYR 6.57

1 Piece(s)Available 17 Day(s) or more 10-21.595.33Nitrile RubberA Type A316

MYR 18.09

1 Piece(s)Available 10 Day(s) or more 10-21.595.33Silicone RubberClass 4 C316

MYR 6.57

1 Piece(s)Available 10 Day(s) or more 10-23.165.33Nitrile RubberA Type A317

MYR 6.57

1 Piece(s)Available 10 Day(s) or more 10-24.765.33Nitrile RubberA Type A318

MYR 10.16

1 Piece(s)Available 10 Day(s) or more 10-26.345.33Nitrile RubberA Type A319

MYR 10.16

1 Piece(s)Available 10 Day(s) or more 10-27.945.33Nitrile RubberA Type A320

MYR 14.71

1 Piece(s)Available 12 Day(s) or more 10-29.515.33Nitrile RubberA Type A321

MYR 10.62

1 Piece(s)Available 17 Day(s) or more 10-31.125.33Nitrile RubberA Type A322

MYR 15.39

1 Piece(s)Available 10 Day(s) or more 10-32.695.33Nitrile RubberA Type A323

MYR 10.62

1 Piece(s)Available 10 Day(s) or more 10-34.295.33Nitrile RubberA Type A324

MYR 3.12

10 Piece(s)Available 10 Day(s) or more 10-37.465.33Nitrile RubberA Type A325

MYR 13.20

1 Piece(s)Available 17 Day(s) or more 10-37.465.33Silicone RubberClass 4 C325

MYR 20.45

1 Piece(s)Available 4 Day(s) or more 10-37.465.33[Fluoroelastomer] Fluorine RubberClass 4 D325

MYR 3.12

10 Piece(s)Available 17 Day(s) or more 10-40.645.33Nitrile RubberA Type A326

MYR 21.85

1 Piece(s)Available 12 Day(s) or more 10-40.645.33[Fluoroelastomer] Fluorine RubberClass 4 D326

MYR 4.04

10 Piece(s)Available 10 Day(s) or more 10-43.825.33Nitrile RubberA Type A327

MYR 22.87

1 Piece(s)Available 17 Day(s) or more 10-43.825.33[Fluoroelastomer] Fluorine RubberClass 4 D327

MYR 3.28

1 Piece(s)Available 10 Day(s) or more 10-46.995.33Nitrile RubberA Type A328

MYR 3.28

1 Piece(s)Available 17 Day(s) or more 10-50.165.33Nitrile RubberA Type A329

MYR 24.95

1 Piece(s)Available 17 Day(s) or more 10-50.165.33[Fluoroelastomer] Fluorine RubberClass 4 D329

MYR 4.72

1 Piece(s)Available 12 Day(s) or more 10-53.345.33Nitrile RubberA Type A330

MYR 7.86

1 Piece(s)Available 17 Day(s) or more 10-53.345.33Nitrile RubberA Type B330

MYR 4.89

1 Piece(s)Available 10 Day(s) or more 10-56.525.33Nitrile RubberA Type A331

MYR 3.62

1 Piece(s)Available 10 Day(s) or more 10-59.695.33Nitrile RubberA Type A332

MYR 3.71

1 Piece(s)Available 10 Day(s) or more 10-62.865.33Nitrile RubberA Type A333

MYR 3.79

1 Piece(s)Available 10 Day(s) or more 10-66.045.33Nitrile RubberA Type A334

MYR 6.68

1 Piece(s)Available 12 Day(s) or more 10-69.225.33Nitrile RubberA Type A335

MYR 4.72

1 Piece(s)Available 10 Day(s) or more 10-72.395.33Nitrile RubberA Type A336

MYR 4.72

1 Piece(s)Available 12 Day(s) or more 10-75.565.33Nitrile RubberA Type A337

MYR 24.44

1 Piece(s)Available 10 Day(s) or more 10-75.565.33Silicone RubberClass 4 C337

MYR 43.09

1 Piece(s)Available 17 Day(s) or more 10-75.565.33[Fluoroelastomer] Fluorine RubberClass 4 D337

MYR 4.72

1 Piece(s)Available 10 Day(s) or more 10-78.745.33Nitrile RubberA Type A338

MYR 4.89

1 Piece(s)Available 17 Day(s) or more 10-81.925.33Nitrile RubberA Type A339

MYR 4.89

1 Piece(s)Available 12 Day(s) or more 10-85.095.33Nitrile RubberA Type A340

MYR 7.02

1 Piece(s)Available 10 Day(s) or more 10-88.265.33Nitrile RubberA Type A341

MYR 5.33

1 Piece(s)Available 10 Day(s) or more 10-94.625.33Nitrile RubberA Type A343

MYR 5.56

1 Piece(s)Available 10 Day(s) or more 10-97.795.33Nitrile RubberA Type A344

MYR 8.87

1 Piece(s)Available 10 Day(s) or more 10-104.145.33Nitrile RubberA Type A346

MYR 6.35

1 Piece(s)Available 12 Day(s) or more 10-107.325.33Nitrile RubberA Type A347

MYR 10.05

1 Piece(s)Available 10 Day(s) or more 10-110.495.33Nitrile RubberA Type A348

MYR 10.22

1 Piece(s)Available 10 Day(s) or more 10-113.665.33Nitrile RubberA Type A349

MYR 19.78

1 Piece(s)Available 10 Day(s) or more 10-120.025.33Nitrile RubberA Type A351

MYR 20.61

1 Piece(s)Available 17 Day(s) or more 10-129.545.33Nitrile RubberA Type A354

MYR 119.90

1 Piece(s)Available 10 Day(s) or more 10-129.545.33[Fluoroelastomer] Fluorine RubberClass 4 D354

MYR 20.61

1 Piece(s)Available 12 Day(s) or more 10-132.725.33Nitrile RubberA Type A355

MYR 21.00

1 Piece(s)Available 12 Day(s) or more 10-135.895.33Nitrile RubberA Type A356

MYR 21.00

1 Piece(s)Available 17 Day(s) or more 10-139.075.33Nitrile RubberA Type A357

MYR 121.76

1 Piece(s)Available 12 Day(s) or more 10-139.075.33[Fluoroelastomer] Fluorine RubberClass 4 D357

MYR 21.00

1 Piece(s)Available 10 Day(s) or more 10-142.245.33Nitrile RubberA Type A358

MYR 45.60

1 Piece(s)Available 18 Day(s) or more -O-Ring142.245.33Silicone RubberClass 4 C358

MYR 22.30

1 Piece(s)Available 12 Day(s) or more 10-145.425.33Nitrile RubberA Type A359

MYR 22.30

1 Piece(s)Available 10 Day(s) or more 10-148.595.33Nitrile RubberA Type A360

MYR 24.38

1 Piece(s)Available 10 Day(s) or more 10-151.775.33Nitrile RubberA Type A361

MYR 49.87

1 Piece(s)Available 18 Day(s) or more -O-Ring158.125.33Silicone RubberClass 4 C362

MYR 25.96

1 Piece(s)Available 12 Day(s) or more 10-164.475.33Nitrile RubberA Type A363

MYR 35.06

1 Piece(s)Available 4 Day(s) or more 10-170.825.33Nitrile RubberA Type A364

MYR 57.03

1 Piece(s)Available 12 Day(s) or more 10-183.525.33Nitrile RubberA Type A366

MYR 57.03

1 Piece(s)Available 17 Day(s) or more 10-189.875.33Nitrile RubberA Type A367

MYR 59.55

1 Piece(s)Available 17 Day(s) or more 10-196.225.33Nitrile RubberA Type A368

MYR 59.55

1 Piece(s)Available 12 Day(s) or more 10-202.575.33Nitrile RubberA Type A369

MYR 59.55

1 Piece(s)Available 10 Day(s) or more 10-208.925.33Nitrile RubberA Type A370

MYR 62.20

1 Piece(s)Available 17 Day(s) or more 10-227.975.33Nitrile RubberA Type A373

MYR 180.76

1 Piece(s)Available 10 Day(s) or more 10-227.975.33[Fluoroelastomer] Fluorine RubberClass 4 D373

MYR 64.72

1 Piece(s)Available 10 Day(s) or more 10-240.675.33Nitrile RubberA Type A375

MYR 190.15

1 Piece(s)Available 10 Day(s) or more 10-240.675.33[Fluoroelastomer] Fluorine RubberClass 4 D375

MYR 192.95

1 Piece(s)Available 17 Day(s) or more 10-247.675.33[Fluoroelastomer] Fluorine RubberClass 4 D376

MYR 67.65

1 Piece(s)Available 17 Day(s) or more 10-253.375.33Nitrile RubberA Type A377

MYR 192.95

1 Piece(s)Available 17 Day(s) or more 10-253.375.33[Fluoroelastomer] Fluorine RubberClass 4 D377

MYR 67.65

1 Piece(s)Available 17 Day(s) or more 10-266.075.33Nitrile RubberA Type A378

MYR 218.24

1 Piece(s)Available 12 Day(s) or more 10-266.075.33[Fluoroelastomer] Fluorine RubberClass 4 D378

MYR 67.65

1 Piece(s)Available 10 Day(s) or more 10-278.775.33Nitrile RubberA Type A379

MYR 70.07

1 Piece(s)Available 10 Day(s) or more 10-304.175.33Nitrile RubberA Type A381

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Basic Information

Standard for AS568 (ARP568) Aircraft

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