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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
-348 EP-70 N/A
190747
N/A N/A N/A 0.210 in N/A 70 N/A 110.49 mm4.350 in N/A 0.005 in0.12 mm N/A 0.030 in0.76 mm N/A -348 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-349 EP-70 N/A
190748
N/A N/A N/A 0.210 in N/A 70 N/A 113.67 mm4.475 in N/A 0.005 in0.12 mm N/A 0.030 in0.76 mm N/A -349 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-350 EP-70 N/A
190749
N/A N/A N/A 0.210 in N/A 70 N/A 116.84 mm4.600 in N/A 0.005 in0.12 mm N/A 0.030 in0.76 mm N/A -350 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-351 EP-70 N/A
190750
N/A N/A N/A 0.210 in N/A 70 N/A 120.02 mm4.725 in N/A 0.005 in0.12 mm N/A 0.030 in0.76 mm N/A -351 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-352 EP-70 N/A
190751
N/A N/A N/A 0.210 in N/A 70 N/A 123.19 mm4.850 in N/A 0.005 in0.12 mm N/A 0.030 in0.76 mm N/A -352 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-353 EP-70 N/A
190752
N/A N/A N/A 0.210 in N/A 70 N/A 126.37 mm4.975 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -353 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-354 EP-70 N/A
190753
N/A N/A N/A 0.210 in N/A 70 N/A 129.54 mm5.100 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -354 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-355 EP-70 N/A
190754
N/A N/A N/A 0.210 in N/A 70 N/A 132.72 mm5.225 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -355 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-356 EP-70 N/A
190755
N/A N/A N/A 0.210 in N/A 70 N/A 135.89 mm5.350 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -356 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-357 EP-70 N/A
190756
N/A N/A N/A 0.210 in N/A 70 N/A 139.07 mm5.475 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -357 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-358 EP-70 N/A
190757
N/A N/A N/A 0.210 in N/A 70 N/A 142.24 mm5.600 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -358 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-359 EP-70 N/A
190758
N/A N/A N/A 0.210 in N/A 70 N/A 145.42 mm5.725 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -359 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-360 EP-70 N/A
190759
N/A N/A N/A 0.210 in N/A 70 N/A 148.59 mm5.850 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -360 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-361 EP-70 N/A
190760
N/A N/A N/A 0.210 in N/A 70 N/A 151.77 mm5.975 in N/A 0.005 in0.12 mm N/A 0.037 in0.94 mm N/A -361 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-362 EP-70 N/A
190761
N/A N/A N/A 0.210 in N/A 70 N/A 158.12 mm6.225 in N/A 0.005 in0.12 mm N/A 0.040 in1.02 mm N/A -362 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-363 EP-70 N/A
190762
N/A N/A N/A 0.210 in N/A 70 N/A 164.47 mm6.475 in N/A 0.005 in0.12 mm N/A 0.040 in1.02 mm N/A -363 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-364 EP-70 N/A
190763
N/A N/A N/A 0.210 in N/A 70 N/A 170.82 mm6.725 in N/A 0.005 in0.12 mm N/A 0.040 in1.02 mm N/A -364 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-365 EP-70 N/A
190764
N/A N/A N/A 0.210 in N/A 70 N/A 177.17 mm6.975 in N/A 0.005 in0.12 mm N/A 0.040 in1.02 mm N/A -365 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-366 EP-70 N/A
190765
N/A N/A N/A 0.210 in N/A 70 N/A 183.52 mm7.225 in N/A 0.005 in0.12 mm N/A 0.045 in1.14 mm N/A -366 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-367 EP-70 N/A
190766
N/A N/A N/A 0.210 in N/A 70 N/A 189.87 mm7.475 in N/A 0.005 in0.12 mm N/A 0.045 in1.14 mm N/A -367 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-368 EP-70 N/A
190767
N/A N/A N/A 0.210 in N/A 70 N/A 196.22 mm7.725 in N/A 0.005 in0.12 mm N/A 0.045 in1.14 mm N/A -368 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-369 EP-70 N/A
190768
N/A N/A N/A 0.210 in N/A 70 N/A 202.57 mm7.975 in N/A 0.005 in0.12 mm N/A 0.045 in1.14 mm N/A -369 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-370 EP-70 N/A
190769
N/A N/A N/A 0.210 in N/A 70 N/A 208.92 mm8.225 in N/A 0.005 in0.12 mm N/A 0.050 in1.30 mm N/A -370 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-371 EP-70 N/A
190770
N/A N/A N/A 0.210 in N/A 70 N/A 215.27 mm8.475 in N/A 0.005 in0.12 mm N/A 0.050 in1.30 mm N/A -371 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-372 EP-70 N/A
190771
N/A N/A N/A 0.210 in N/A 70 N/A 221.62 mm8.725 in N/A 0.005 in0.12 mm N/A 0.050 in1.30 mm N/A -372 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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