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  • AS568 Buna O-Rings
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.
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Cross Section Width (in)

Inside Diameter (mm)

Inside Diameter (in)

Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

Cross Section Tolerance +/-

Inside Diameter Tolerance +/-

Size Reference - AS568

N/A
190497 		N/A AS568 Standard O-Ring N/A EP 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
190498 		N/A AS568 Standard O-Ring N/A EP 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
190499 		N/A AS568 Standard O-Ring N/A EP 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
190500 		N/A AS568 Standard O-Ring N/A EP 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
190501 		N/A AS568 Standard O-Ring N/A EP 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
190502 		N/A AS568 Standard O-Ring N/A EP 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
190503 		N/A AS568 Standard O-Ring N/A EP 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
190504 		N/A AS568 Standard O-Ring N/A EP 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
190505 		N/A AS568 Standard O-Ring N/A EP 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
190506 		N/A AS568 Standard O-Ring N/A EP 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
190507 		N/A AS568 Standard O-Ring N/A EP 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
190508 		N/A AS568 Standard O-Ring N/A EP 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
190509 		N/A AS568 Standard O-Ring N/A EP 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
190510 		N/A AS568 Standard O-Ring N/A EP 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
190511 		N/A AS568 Standard O-Ring N/A EP 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
190512 		N/A AS568 Standard O-Ring N/A EP 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
190513 		N/A AS568 Standard O-Ring N/A EP 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
190514 		N/A AS568 Standard O-Ring N/A EP 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
190515 		N/A AS568 Standard O-Ring N/A EP 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
190516 		N/A AS568 Standard O-Ring N/A EP 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
190517 		N/A AS568 Standard O-Ring N/A EP 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
190518 		N/A AS568 Standard O-Ring N/A EP 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
190519 		N/A AS568 Standard O-Ring N/A EP 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
190520 		N/A AS568 Standard O-Ring N/A EP 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
190521 		N/A AS568 Standard O-Ring N/A EP 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
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