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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
-001 EP-70 N/A
190497 		N/A N/A N/A 0.040 in N/A 70 N/A 0.74 mm0.029 in N/A 0.003 in0.08 mm N/A 0.004 in0.10 mm N/A -001 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-002 EP-70 N/A
190498 		N/A N/A N/A 0.050 in N/A 70 N/A 1.07 mm0.042 in N/A 0.003 in0.08 mm N/A 0.004 in0.10 mm N/A -002 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-003 EP-70 N/A
190499 		N/A N/A N/A 0.060 in N/A 70 N/A 1.42 mm0.056 in N/A 0.003 in0.08 mm N/A 0.004 in0.10 mm N/A -003 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-004 EP-70 N/A
190500 		N/A N/A N/A 0.070 in N/A 70 N/A 1.78 mm0.070 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -004 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-005 EP-70 N/A
190501 		N/A N/A N/A 0.070 in N/A 70 N/A 2.57 mm0.101 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -005 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-006 EP-70 N/A
190502 		N/A N/A N/A 0.070 in N/A 70 N/A 2.90 mm0.114 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -006 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-007 EP-70 N/A
190503 		N/A N/A N/A 0.070 in N/A 70 N/A 3.68 mm0.145 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -007 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-008 EP-70 N/A
190504 		N/A N/A N/A 0.070 in N/A 70 N/A 4.47 mm0.176 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -008 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-009 EP-70 N/A
190505 		N/A N/A N/A 0.070 in N/A 70 N/A 5.28 mm0.208 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -009 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-010 EP-70 N/A
190506 		N/A N/A N/A 0.070 in N/A 70 N/A 6.07 mm0.239 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -010 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-011 EP-70 N/A
190507 		N/A N/A N/A 0.070 in N/A 70 N/A 7.65 mm0.300 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -011 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-012 EP-70 N/A
190508 		N/A N/A N/A 0.070 in N/A 70 N/A 9.25 mm0.364 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -012 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-013 EP-70 N/A
190509 		N/A N/A N/A 0.070 in N/A 70 N/A 10.82 mm0.426 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -013 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-014 EP-70 N/A
190510 		N/A N/A N/A 0.070 in N/A 70 N/A 12.42 mm0.489 in N/A 0.003 in0.08 mm N/A 0.005 in0.12 mm N/A -014 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-015 EP-70 N/A
190511 		N/A N/A N/A 0.070 in N/A 70 N/A 14.00 mm0.551 in N/A 0.003 in0.08 mm N/A 0.007 in0.17 mm N/A -015 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-016 EP-70 N/A
190512 		N/A N/A N/A 0.070 in N/A 70 N/A 15.60 mm0.614 in N/A 0.003 in0.08 mm N/A 0.009 in0.22 mm N/A -016 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-017 EP-70 N/A
190513 		N/A N/A N/A 0.070 in N/A 70 N/A 17.17 mm0.676 in N/A 0.003 in0.08 mm N/A 0.009 in0.22 mm N/A -017 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-018 EP-70 N/A
190514 		N/A N/A N/A 0.070 in N/A 70 N/A 18.77 mm0.739 in N/A 0.003 in0.08 mm N/A 0.009 in0.22 mm N/A -018 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-019 EP-70 N/A
190515 		N/A N/A N/A 0.070 in N/A 70 N/A 20.35 mm0.801 in N/A 0.003 in0.08 mm N/A 0.009 in0.22 mm N/A -019 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-020 EP-70 N/A
190516 		N/A N/A N/A 0.070 in N/A 70 N/A 21.95 mm0.864 in N/A 0.003 in0.08 mm N/A 0.009 in0.22 mm N/A -020 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
M--021 EP-70 N/A
190517 		N/A N/A N/A 0.070 in N/A 70 N/A 23.52 mm0.926 in N/A 0.003 in0.08 mm N/A 0.009 in0.22 mm N/A -021 N/A -021 EP-70 N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-022 EP-70 N/A
190518 		N/A N/A N/A 0.070 in N/A 70 N/A 25.12 mm0.989 in N/A 0.003 in0.08 mm N/A 0.010 in0.25 mm N/A -022 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-023 EP-70 N/A
190519 		N/A N/A N/A 0.070 in N/A 70 N/A 26.70 mm1.051 in N/A 0.003 in0.08 mm N/A 0.010 in0.25 mm N/A -023 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-024 EP-70 N/A
190520 		N/A N/A N/A 0.070 in N/A 70 N/A 28.30 mm1.114 in N/A 0.003 in0.08 mm N/A 0.010 in0.25 mm N/A -024 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-025 EP-70 N/A
190521 		N/A N/A N/A 0.070 in N/A 70 N/A 29.87 mm1.176 in N/A 0.003 in0.08 mm N/A 0.011 in0.28 mm N/A -025 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
Unit of Measure
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