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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
-026 EP-70 N/A
190522 		N/A N/A N/A 0.070 in N/A 70 N/A 31.47 mm1.239 in N/A 0.003 in0.08 mm N/A 0.011 in0.28 mm N/A -026 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-027 EP-70 N/A
190523 		N/A N/A N/A 0.070 in N/A 70 N/A 33.05 mm1.301 in N/A 0.003 in0.08 mm N/A 0.011 in0.28 mm N/A -027 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-028 EP-70 N/A
190524 		N/A N/A N/A 0.070 in N/A 70 N/A 34.65 mm1.364 in N/A 0.003 in0.08 mm N/A 0.013 in0.33 mm N/A -028 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-029 EP-70 N/A
190525 		N/A N/A N/A 0.070 in N/A 70 N/A 37.82 mm1.489 in N/A 0.003 in0.08 mm N/A 0.013 in0.33 mm N/A -029 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-030 EP-70 N/A
190526 		N/A N/A N/A 0.070 in N/A 70 N/A 41.00 mm1.614 in N/A 0.003 in0.08 mm N/A 0.013 in0.33 mm N/A -030 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-031 EP-70 N/A
190527 		N/A N/A N/A 0.070 in N/A 70 N/A 44.17 mm1.739 in N/A 0.003 in0.08 mm N/A 0.015 in0.36 mm N/A -031 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-032 EP-70 N/A
190528 		N/A N/A N/A 0.070 in N/A 70 N/A 47.35 mm1.864 in N/A 0.003 in0.08 mm N/A 0.015 in0.38 mm N/A -032 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-033 EP-70 N/A
190529 		N/A N/A N/A 0.070 in N/A 70 N/A 50.52 mm1.989 in N/A 0.003 in0.08 mm N/A 0.018 in0.46 mm N/A -033 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-034 EP-70 N/A
190530 		N/A N/A N/A 0.070 in N/A 70 N/A 53.70 mm2.114 in N/A 0.003 in0.08 mm N/A 0.018 in0.46 mm N/A -034 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-035 EP-70 N/A
190531 		N/A N/A N/A 0.070 in N/A 70 N/A 56.87 mm2.239 in N/A 0.003 in0.08 mm N/A 0.018 in0.46 mm N/A -035 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-036 EP-70 N/A
190532 		N/A N/A N/A 0.070 in N/A 70 N/A 60.05 mm2.364 in N/A 0.003 in0.08 mm N/A 0.018 in0.46 mm N/A -036 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-037 EP-70 N/A
190533 		N/A N/A N/A 0.070 in N/A 70 N/A 63.22 mm2.489 in N/A 0.003 in0.08 mm N/A 0.018 in0.46 mm N/A -037 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-038 EP-70 N/A
190534 		N/A N/A N/A 0.070 in N/A 70 N/A 66.40 mm2.614 in N/A 0.003 in0.08 mm N/A 0.020 in0.50 mm N/A -038 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-039 EP-70 N/A
190535 		N/A N/A N/A 0.070 in N/A 70 N/A 69.57 mm2.739 in N/A 0.003 in0.08 mm N/A 0.020 in0.50 mm N/A -039 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-040 EP-70 N/A
190536 		N/A N/A N/A 0.070 in N/A 70 N/A 72.75 mm2.864 in N/A 0.003 in0.08 mm N/A 0.020 in0.50 mm N/A -040 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-041 EP-70 N/A
190537 		N/A N/A N/A 0.070 in N/A 70 N/A 75.92 mm2.989 in N/A 0.003 in0.08 mm N/A 0.024 in0.61 mm N/A -041 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-042 EP-70 N/A
190538 		N/A N/A N/A 0.070 in N/A 70 N/A 82.27 mm3.239 in N/A 0.003 in0.08 mm N/A 0.024 in0.61 mm N/A -042 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-043 EP-70 N/A
190539 		N/A N/A N/A 0.070 in N/A 70 N/A 88.62 mm3.489 in N/A 0.003 in0.08 mm N/A 0.024 in0.61 mm N/A -043 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
M--044 EP-70 N/A
190540 		N/A N/A N/A 0.070 in N/A 70 N/A 94.97 mm3.739 in N/A 0.003 in0.08 mm N/A 0.027 in0.69 mm N/A -044 N/A -044 EP-70 N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-045 EP-70 N/A
190541 		N/A N/A N/A 0.070 in N/A 70 N/A 101.32 mm3.989 in N/A 0.003 in0.08 mm N/A 0.027 in0.69 mm N/A -045 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-046 EP-70 N/A
190542 		N/A N/A N/A 0.070 in N/A 70 N/A 107.67 mm4.239 in N/A 0.003 in0.08 mm N/A 0.030 in0.76 mm N/A -046 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-047 EP-70 N/A
190543 		N/A N/A N/A 0.070 in N/A 70 N/A 114.02 mm4.489 in N/A 0.003 in0.08 mm N/A 0.030 in0.76 mm N/A -047 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-048 EP-70 N/A
190544 		N/A N/A N/A 0.070 in N/A 70 N/A 120.37 mm4.739 in N/A 0.003 in0.08 mm N/A 0.030 in0.76 mm N/A -048 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-049 EP-70 N/A
190545 		N/A N/A N/A 0.070 in N/A 70 N/A 126.72 mm4.989 in N/A 0.003 in0.08 mm N/A 0.037 in0.94 mm N/A -049 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-050 EP-70 N/A
190546 		N/A N/A N/A 0.070 in N/A 70 N/A 133.07 mm5.239 in N/A 0.003 in0.08 mm N/A 0.037 in0.94 mm N/A -050 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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