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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.
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Cross Section Width (in)

Cross Section Width (mm)

Inside Diameter (in)

Item #

IntegrationID

Type

Material

Cross Section Width

Durometer

Inside Diameter

Cross Section Tolerance +/-

Inside Diameter Tolerance +/-

Size Reference - AS568

Units of Measure

Tube Size O.D.

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-901 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.056 inNumeric mm N/A 70 N/A 0.185 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -901 N/A Imperial N/A 3/32 N/A
-902 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.064 inNumeric mm N/A 70 N/A 0.239 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -902 N/A Imperial N/A 1/8 N/A
-903 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.064 inNumeric mm N/A 70 N/A 0.301 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -903 N/A Imperial N/A 3/16 N/A
-904 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.072 inNumeric mm N/A 70 N/A 0.351 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -904 N/A Imperial N/A 1/4 N/A
-905 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.072 inNumeric mm N/A 70 N/A 0.414 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -905 N/A Imperial N/A 5/16 N/A
-906 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.078 inNumeric mm N/A 70 N/A 0.468 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -906 N/A Imperial N/A 3/8 N/A
-907 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.082 inNumeric mm N/A 70 N/A 0.530 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -907 N/A Imperial N/A 7/16 N/A
-908 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.087 inNumeric mm N/A 70 N/A 0.644 in N/A 0.003 inNumeric N/A 0.009 inNumeric mm N/A -908 N/A Imperial N/A 1/2 N/A
-909 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.097 inNumeric mm N/A 70 N/A 0.706 in N/A 0.003 inNumeric N/A 0.009 inNumeric mm N/A -909 N/A Imperial N/A 9/16 N/A
-910 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.097 inNumeric mm N/A 70 N/A 0.755 in N/A 0.003 inNumeric N/A 0.009 inNumeric mm N/A -910 N/A Imperial N/A 5/8 N/A
-911 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.116 inNumeric mm N/A 70 N/A 0.863 in N/A 0.004 inNumeric N/A 0.009 inNumeric mm N/A -911 N/A Imperial N/A 11/16 N/A
-912 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.116 inNumeric mm N/A 70 N/A 0.924 in N/A 0.004 inNumeric N/A 0.009 inNumeric mm N/A -912 N/A Imperial N/A 3/4 N/A
-913 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.116 inNumeric mm N/A 70 N/A 0.986 in N/A 0.004 inNumeric N/A 0.01 inNumeric mm N/A -913 N/A Imperial N/A 13/16 N/A
-914 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.116 inNumeric mm N/A 70 N/A 1.047 in N/A 0.004 inNumeric N/A 0.01 inNumeric mm N/A -914 N/A Imperial N/A 7/8 N/A
-916 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.116 inNumeric mm N/A 70 N/A 1.171 in N/A 0.004 inNumeric N/A 0.01 inNumeric mm N/A -916 N/A Imperial N/A 1 N/A
-918 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.116 inNumeric mm N/A 70 N/A 1.355 in N/A 0.004 inNumeric N/A 0.012 inNumeric mm N/A -918 N/A Imperial N/A 1-1/8 N/A
-920 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.118 inNumeric mm N/A 70 N/A 1.475 in N/A 0.004 inNumeric N/A 0.014 inNumeric mm N/A -920 N/A Imperial N/A 1-1/4 N/A
-924 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.118 inNumeric mm N/A 70 N/A 1.720 in N/A 0.004 inNumeric N/A 0.014 inNumeric mm N/A -924 N/A Imperial N/A 1-1/2 N/A
-928 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.118 inNumeric mm N/A 70 N/A 2.090 in N/A 0.004 inNumeric N/A 0.018 inNumeric mm N/A -928 N/A Imperial N/A 1-3/4 N/A
-932 PTFE-70 N/A AS568 Standard O-Rings N/A PTFE N/A 0.118 inNumeric mm N/A 70 N/A 2.337 in N/A 0.004 inNumeric N/A 0.018 inNumeric mm N/A -932 N/A Imperial N/A 2 N/A
-901 PTFE-75 N/A AS568 Standard O-Rings N/A PTFE N/A 0.056 inNumeric mm N/A 75 N/A 0.185 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -901 N/A Imperial N/A 3/32 N/A
-902 PTFE-75 N/A AS568 Standard O-Rings N/A PTFE N/A 0.064 inNumeric mm N/A 75 N/A 0.239 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -902 N/A Imperial N/A 1/8 N/A
-903 PTFE-75 N/A AS568 Standard O-Rings N/A PTFE N/A 0.064 inNumeric mm N/A 75 N/A 0.301 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -903 N/A Imperial N/A 3/16 N/A
-904 PTFE-75 N/A AS568 Standard O-Rings N/A PTFE N/A 0.072 inNumeric mm N/A 75 N/A 0.351 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -904 N/A Imperial N/A 1/4 N/A
-905 PTFE-75 N/A AS568 Standard O-Rings N/A PTFE N/A 0.072 inNumeric mm N/A 75 N/A 0.414 in N/A 0.003 inNumeric N/A 0.005 inNumeric mm N/A -905 N/A Imperial N/A 5/16 N/A
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