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Standard O-Rings are available in 369 sizes as set up by the Aerospace Standard 568 published by the Society of Automotive Engineers. These sizes are designated by dash numbers shown on the 568 DASH Chart and are standardized by imperial dimensions. Standard O-Rings are specified by their inside diameter and cross section width. AS568 is the most commonly used standard in the U.S. for aerospace, automotive and general industrial applications. For more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart. EP is also known as: Eythylene Propylene, EPR, EPDM, EPT, E.

EP is an elastomer which is characterized by wide range of applications and good chemical resistance. Ethylene propylene compounds have good resistance to detergents, alkalis, mild acids, greases, silicone oils, and alcohols.
AS568 Buna O-Rings
Unit of Measure
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Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

Cross Section Tolerance +/-

Inside Diameter Tolerance +/-

Size Reference - AS568

Alternate P/N

Units of Measure

Tube Size O.D.

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O-Ring Industries

Quantity
-452 EP-70 N/A
190847
N/A N/A N/A 0.275 in N/A 70 N/A 291.47 mm11.475 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -452 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-453 EP-70 N/A
190848
N/A N/A N/A 0.275 in N/A 70 N/A 304.17 mm11.975 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -453 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-454 EP-70 N/A
190849
N/A N/A N/A 0.275 in N/A 70 N/A 316.87 mm12.475 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -454 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-455 EP-70 N/A
190850
N/A N/A N/A 0.275 in N/A 70 N/A 329.57 mm12.975 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -455 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-456 EP-70 N/A
190851
N/A N/A N/A 0.275 in N/A 70 N/A 342.27 mm13.475 in N/A 0.006 in0.15 mm N/A 0.070 in1.78 mm N/A -456 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-457 EP-70 N/A
190852
N/A N/A N/A 0.275 in N/A 70 N/A 354.97 mm13.975 in N/A 0.006 in0.15 mm N/A 0.070 in1.78 mm N/A -457 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-458 EP-70 N/A
190853
N/A N/A N/A 0.275 in N/A 70 N/A 367.67 mm14.475 in N/A 0.006 in0.15 mm N/A 0.070 in1.78 mm N/A -458 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-459 EP-70 N/A
190854
N/A N/A N/A 0.275 in N/A 70 N/A 380.37 mm14.975 in N/A 0.006 in0.15 mm N/A 0.070 in1.78 mm N/A -459 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-460 EP-70 N/A
190855
N/A N/A N/A 0.275 in N/A 70 N/A 393.07 mm15.475 in N/A 0.006 in0.15 mm N/A 0.070 in1.78 mm N/A -460 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-461 EP-70 N/A
190856
N/A N/A N/A 0.275 in N/A 70 N/A 405.26 mm15.955 in N/A 0.006 in0.15 mm N/A 0.075 in1.90 mm N/A -461 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-462 EP-70 N/A
190857
N/A N/A N/A 0.275 in N/A 70 N/A 417.96 mm16.455 in N/A 0.006 in0.15 mm N/A 0.075 in1.90 mm N/A -462 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-463 EP-70 N/A
190858
N/A N/A N/A 0.275 in N/A 70 N/A 430.66 mm16.955 in N/A 0.006 in0.15 mm N/A 0.080 in2.05 mm N/A -463 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-464 EP-70 N/A
190859
N/A N/A N/A 0.275 in N/A 70 N/A 443.36 mm17.455 in N/A 0.006 in0.15 mm N/A 0.085 in2.15 mm N/A -464 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-465 EP-70 N/A
190860
N/A N/A N/A 0.275 in N/A 70 N/A 456.06 mm17.955 in N/A 0.006 in0.15 mm N/A 0.085 in2.15 mm N/A -465 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-466 EP-70 N/A
190861
N/A N/A N/A 0.275 in N/A 70 N/A 468.76 mm18.455 in N/A 0.006 in0.15 mm N/A 0.085 in2.15 mm N/A -466 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-467 EP-70 N/A
190862
N/A N/A N/A 0.275 in N/A 70 N/A 481.46 mm18.955 in N/A 0.006 in0.15 mm N/A 0.090 in2.25 mm N/A -467 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-468 EP-70 N/A
190863
N/A N/A N/A 0.275 in N/A 70 N/A 494.16 mm19.455 in N/A 0.006 in0.15 mm N/A 0.090 in2.25 mm N/A -468 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-469 EP-70 N/A
190864
N/A N/A N/A 0.275 in N/A 70 N/A 506.86 mm19.955 in N/A 0.006 in0.15 mm N/A 0.090 in2.45 mm N/A -469 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-470 EP-70 N/A
190865
N/A N/A N/A 0.275 in N/A 70 N/A 532.26 mm20.955 in N/A 0.006 in0.15 mm N/A 0.090 in2.45 mm N/A -470 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-471 EP-70 N/A
190866
N/A N/A N/A 0.275 in N/A 70 N/A 557.66 mm21.955 in N/A 0.006 in0.15 mm N/A 0.100 in2.55 mm N/A -471 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-472 EP-70 N/A
190867
N/A N/A N/A 0.275 in N/A 70 N/A 582.65 mm22.940 in N/A 0.006 in0.15 mm N/A 0.105 in2.65 mm N/A -472 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-473 EP-70 N/A
190868
N/A N/A N/A 0.275 in N/A 70 N/A 608.10 mm23.940 in N/A 0.006 in0.15 mm N/A 0.110 in2.80 mm N/A -473 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-474 EP-70 N/A
190869
N/A N/A N/A 0.275 in N/A 70 N/A 633.50 mm24.940 in N/A 0.006 in0.15 mm N/A 0.115 in2.90 mm N/A -474 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-475 EP-70 N/A
190870
N/A N/A N/A 0.275 in N/A 70 N/A 658.85 mm25.940 in N/A 0.006 in0.15 mm N/A 0.120 in3.05 mm N/A -475 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-903 EP-70 N/A AS568 Standard O-Rings AS568 Standard O-Rings N/A EP EP N/A 0.064 in N/A 70 N/A 0.301 mm0.301 in N/A 0.003 in N/A 0.005 in N/A -903 N/A N/A Imperial Imperial N/A 3/16 3/32 N/A N/A O-rings are used in the military defense and agriculture industries.
Unit of Measure
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