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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
-224 EP-70 N/A
190647
N/A N/A N/A 0.139 in N/A 70 N/A 44.04 mm1.734 in N/A 0.004 in0.10 mm N/A 0.015 in0.38 mm N/A -224 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-225 EP-70 N/A
190648
N/A N/A N/A 0.139 in N/A 70 N/A 47.22 mm1.859 in N/A 0.004 in0.10 mm N/A 0.018 in0.46 mm N/A -225 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-226 EP-70 N/A
190649
N/A N/A N/A 0.139 in N/A 70 N/A 50.39 mm1.984 in N/A 0.004 in0.10 mm N/A 0.018 in0.46 mm N/A -226 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-227 EP-70 N/A
190650
N/A N/A N/A 0.139 in N/A 70 N/A 53.57 mm2.109 in N/A 0.004 in0.10 mm N/A 0.018 in0.46 mm N/A -227 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-228 EP-70 N/A
190651
N/A N/A N/A 0.139 in N/A 70 N/A 56.74 mm2.234 in N/A 0.004 in0.10 mm N/A 0.020 in0.50 mm N/A -228 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-229 EP-70 N/A
190652
N/A N/A N/A 0.139 in N/A 70 N/A 59.92 mm2.359 in N/A 0.004 in0.10 mm N/A 0.020 in0.50 mm N/A -229 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-230 EP-70 N/A
190653
N/A N/A N/A 0.139 in N/A 70 N/A 63.09 mm2.484 in N/A 0.004 in0.10 mm N/A 0.020 in0.50 mm N/A -230 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-231 EP-70 N/A
190654
N/A N/A N/A 0.139 in N/A 70 N/A 66.27 mm2.609 in N/A 0.004 in0.10 mm N/A 0.020 in0.50 mm N/A -231 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-232 EP-70 N/A
190655
N/A N/A N/A 0.139 in N/A 70 N/A 69.44 mm2.734 in N/A 0.004 in0.10 mm N/A 0.024 in0.61 mm N/A -232 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-233 EP-70 N/A
190656
N/A N/A N/A 0.139 in N/A 70 N/A 72.62 mm2.859 in N/A 0.004 in0.10 mm N/A 0.024 in0.61 mm N/A -233 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-234 EP-70 N/A
190657
N/A N/A N/A 0.139 in N/A 70 N/A 75.79 mm2.984 in N/A 0.004 in0.10 mm N/A 0.024 in0.61 mm N/A -234 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-235 EP-70 N/A
190658
N/A N/A N/A 0.139 in N/A 70 N/A 78.97 mm3.109 in N/A 0.004 in0.10 mm N/A 0.024 in0.61 mm N/A -235 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-236 EP-70 N/A
190659
N/A N/A N/A 0.139 in N/A 70 N/A 82.14 mm3.234 in N/A 0.004 in0.10 mm N/A 0.024 in0.61 mm N/A -236 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-237 EP-70 N/A
190660
N/A N/A N/A 0.139 in N/A 70 N/A 85.32 mm3.359 in N/A 0.004 in0.10 mm N/A 0.024 in0.61 mm N/A -237 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-238 EP-70 N/A
190661
N/A N/A N/A 0.139 in N/A 70 N/A 88.49 mm3.484 in N/A 0.004 in0.10 mm N/A 0.024 in0.61 mm N/A -238 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-239 EP-70 N/A
190662
N/A N/A N/A 0.139 in N/A 70 N/A 91.67 mm3.609 in N/A 0.004 in0.10 mm N/A 0.028 in0.71 mm N/A -239 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-240 EP-70 N/A
190663
N/A N/A N/A 0.139 in N/A 70 N/A 94.84 mm3.734 in N/A 0.004 in0.10 mm N/A 0.028 in0.71 mm N/A -240 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-241 EP-70 N/A
190664
N/A N/A N/A 0.139 in N/A 70 N/A 98.02 mm3.859 in N/A 0.004 in0.10 mm N/A 0.028 in0.71 mm N/A -241 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-242 EP-70 N/A
190665
N/A N/A N/A 0.139 in N/A 70 N/A 101.19 mm3.984 in N/A 0.004 in0.10 mm N/A 0.028 in0.71 mm N/A -242 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-243 EP-70 N/A
190666
N/A N/A N/A 0.139 in N/A 70 N/A 104.37 mm4.109 in N/A 0.004 in0.10 mm N/A 0.028 in0.71 mm N/A -243 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-244 EP-70 N/A
190667
N/A N/A N/A 0.139 in N/A 70 N/A 107.54 mm4.234 in N/A 0.004 in0.10 mm N/A 0.030 in0.76 mm N/A -244 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-245 EP-70 N/A
190668
N/A N/A N/A 0.139 in N/A 70 N/A 110.72 mm4.359 in N/A 0.004 in0.10 mm N/A 0.030 in0.76 mm N/A -245 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-246 EP-70 N/A
190669
N/A N/A N/A 0.139 in N/A 70 N/A 113.89 mm4.484 in N/A 0.004 in0.10 mm N/A 0.030 in0.76 mm N/A -246 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-247 EP-70 N/A
190670
N/A N/A N/A 0.139 in N/A 70 N/A 117.07 mm4.609 in N/A 0.004 in0.10 mm N/A 0.030 in0.76 mm N/A -247 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-248 EP-70 N/A
190671
N/A N/A N/A 0.139 in N/A 70 N/A 120.24 mm4.734 in N/A 0.004 in0.10 mm N/A 0.030 in0.76 mm N/A -248 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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