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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.. Viton® is also known as: Fluorocarbon and FKM. Viton® is a registered trademarks of DuPont® Dow Elastomers.

A fluoroelastomer compound with a combination of exceptional mechanical properties and compression set resistance. This particular energizer gives an O-ring excellent memory and the ability to recover rapidly from deformation. This core has a Shore A hardness of 75 with a suggested operating temperature range of -10°F to +300°F (-23°C to +150°C) in encapsulated applications.
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.

Call for a Quote

O-Ring Industries

Quantity
249V75 N/A
192343 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 123.42 mm4.859 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -249 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
249V90 N/A
192344 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 123.42 mm4.859 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -249 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
250V75 N/A
192345 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 126.59 mm4.984 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -250 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
250V90 N/A
192346 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 126.59 mm4.984 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -250 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
251V75 N/A
192347 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 129.77 mm5.109 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -251 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
251V90 N/A
192348 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 129.77 mm5.109 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -251 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
252V75 N/A
192349 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 132.94 mm5.234 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -252 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
252V90 N/A
192350 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 132.94 mm5.234 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -252 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
253V75 N/A
192351 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 136.12 mm5.359 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -253 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
253V90 N/A
192352 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 136.12 mm5.359 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -253 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
254V75 N/A
192353 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 139.29 mm5.484 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -254 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
254V90 N/A
192354 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 139.29 mm5.484 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -254 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
255V75 N/A
192355 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 142.47 mm5.609 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -255 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
255V90 N/A
192356 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 142.47 mm5.609 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -255 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
256V75 N/A
192357 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 145.64 mm5.734 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -256 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
256V90 N/A
192358 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 145.64 mm5.734 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -256 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
257V75 N/A
192359 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 148.82 mm5.859 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -257 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
257V90 N/A
192360 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 148.82 mm5.859 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -257 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
258V75 N/A
192361 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 151.99 mm5.984 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -258 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
258V90 N/A
192362 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 151.99 mm5.984 in N/A 0.004 in0.10 mm N/A 0.035 in0.89 mm N/A -258 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
259V75 N/A
192363 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 158.34 mm6.234 in N/A 0.004 in0.10 mm N/A 0.040 in1.02 mm N/A -259 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
259V90 N/A
192364 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 158.34 mm6.234 in N/A 0.004 in0.10 mm N/A 0.040 in1.02 mm N/A -259 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
260V75 N/A
192365 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 164.69 mm6.484 in N/A 0.004 in0.10 mm N/A 0.040 in1.02 mm N/A -260 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
260V90 N/A
192366 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 90 N/A 164.69 mm6.484 in N/A 0.004 in0.10 mm N/A 0.040 in1.02 mm N/A -260 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
261V75 N/A
192367 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.139 in3.53 mm N/A 75 N/A 171.04 mm6.734 in N/A 0.004 in0.10 mm N/A 0.040 in1.02 mm N/A -261 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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