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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
-402 EP-70 N/A
190797
N/A N/A N/A 0.275 in N/A 70 N/A 40.64 mm1.600 in N/A 0.006 in0.15 mm N/A 0.015 in0.38 mm N/A -402 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-403 EP-70 N/A
190798
N/A N/A N/A 0.275 in N/A 70 N/A 43.82 mm1.725 in N/A 0.006 in0.15 mm N/A 0.015 in0.38 mm N/A -403 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-404 EP-70 N/A
190799
N/A N/A N/A 0.275 in N/A 70 N/A 46.99 mm1.850 in N/A 0.006 in0.15 mm N/A 0.018 in0.38 mm N/A -404 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-405 EP-70 N/A
190800
N/A N/A N/A 0.275 in N/A 70 N/A 50.17 mm1.975 in N/A 0.006 in0.15 mm N/A 0.018 in0.46 mm N/A -405 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-406 EP-70 N/A
190801
N/A N/A N/A 0.275 in N/A 70 N/A 53.34 mm2.100 in N/A 0.006 in0.15 mm N/A 0.018 in0.46 mm N/A -406 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-407 EP-70 N/A
190802
N/A N/A N/A 0.275 in N/A 70 N/A 56.52 mm2.225 in N/A 0.006 in0.15 mm N/A 0.018 in0.46 mm N/A -407 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-408 EP-70 N/A
190803
N/A N/A N/A 0.275 in N/A 70 N/A 59.69 mm2.350 in N/A 0.006 in0.15 mm N/A 0.020 in0.46 mm N/A -408 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-409 EP-70 N/A
190804
N/A N/A N/A 0.275 in N/A 70 N/A 62.87 mm2.475 in N/A 0.006 in0.15 mm N/A 0.020 in0.51 mm N/A -409 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-410 EP-70 N/A
190805
N/A N/A N/A 0.275 in N/A 70 N/A 66.04 mm2.600 in N/A 0.006 in0.15 mm N/A 0.020 in0.51 mm N/A -410 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-411 EP-70 N/A
190806
N/A N/A N/A 0.275 in N/A 70 N/A 69.22 mm2.725 in N/A 0.006 in0.15 mm N/A 0.020 in0.51 mm N/A -411 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-412 EP-70 N/A
190807
N/A N/A N/A 0.275 in N/A 70 N/A 72.39 mm2.850 in N/A 0.006 in0.15 mm N/A 0.020 in0.51 mm N/A -412 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-413 EP-70 N/A
190808
N/A N/A N/A 0.275 in N/A 70 N/A 75.57 mm2.975 in N/A 0.006 in0.15 mm N/A 0.024 in0.61 mm N/A -413 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-414 EP-70 N/A
190809
N/A N/A N/A 0.275 in N/A 70 N/A 78.74 mm3.100 in N/A 0.006 in0.15 mm N/A 0.024 in0.61 mm N/A -414 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-415 EP-70 N/A
190810
N/A N/A N/A 0.275 in N/A 70 N/A 81.92 mm3.225 in N/A 0.006 in0.15 mm N/A 0.024 in0.61 mm N/A -415 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-416 EP-70 N/A
190811
N/A N/A N/A 0.275 in N/A 70 N/A 85.09 mm3.350 in N/A 0.006 in0.15 mm N/A 0.024 in0.61 mm N/A -416 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-417 EP-70 N/A
190812
N/A N/A N/A 0.275 in N/A 70 N/A 88.27 mm3.475 in N/A 0.006 in0.15 mm N/A 0.024 in0.61 mm N/A -417 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-418 EP-70 N/A
190813
N/A N/A N/A 0.275 in N/A 70 N/A 91.44 mm3.600 in N/A 0.006 in0.15 mm N/A 0.028 in0.71 mm N/A -418 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-419 EP-70 N/A
190814
N/A N/A N/A 0.275 in N/A 70 N/A 94.62 mm3.725 in N/A 0.006 in0.15 mm N/A 0.028 in0.71 mm N/A -419 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-420 EP-70 N/A
190815
N/A N/A N/A 0.275 in N/A 70 N/A 97.79 mm3.850 in N/A 0.006 in0.15 mm N/A 0.028 in0.71 mm N/A -420 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-421 EP-70 N/A
190816
N/A N/A N/A 0.275 in N/A 70 N/A 100.97 mm3.975 in N/A 0.006 in0.15 mm N/A 0.028 in0.71 mm N/A -421 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
-422 EP-70 N/A
190817
N/A N/A N/A 0.275 in N/A 70 N/A 104.14 mm4.100 in N/A 0.006 in0.15 mm N/A 0.028 in0.71 mm N/A -422 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-423 EP-70 N/A
190818
N/A N/A N/A 0.275 in N/A 70 N/A 107.32 mm4.225 in N/A 0.006 in0.15 mm N/A 0.030 in0.76 mm N/A -423 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-424 EP-70 N/A
190819
N/A N/A N/A 0.275 in N/A 70 N/A 110.49 mm4.350 in N/A 0.006 in0.15 mm N/A 0.030 in0.76 mm N/A -424 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-425 EP-70 N/A
190820
N/A N/A N/A 0.275 in N/A 70 N/A 113.67 mm4.475 in N/A 0.006 in0.15 mm N/A 0.033 in0.83 mm N/A -425 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
-426 EP-70 N/A
190821
N/A N/A N/A 0.275 in N/A 70 N/A 116.84 mm4.600 in N/A 0.006 in0.15 mm N/A 0.033 in0.83 mm N/A -426 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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