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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
439V90 N/A
192668 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 164.47 mm6.475 in N/A 0.006 in0.15 mm N/A 0.040 in1.01 mm N/A -439 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
440V75 N/A
192669 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 170.82 mm6.725 in N/A 0.006 in0.15 mm N/A 0.040 in1.01 mm N/A -440 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
440V90 N/A
192670 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 170.82 mm6.725 in N/A 0.006 in0.15 mm N/A 0.040 in1.01 mm N/A -440 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
441V75 N/A
192671 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 177.17 mm6.975 in N/A 0.006 in0.15 mm N/A 0.040 in1.01 mm N/A -441 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
441V90 N/A
192672 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 177.17 mm6.975 in N/A 0.006 in0.15 mm N/A 0.040 in1.01 mm N/A -441 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
442V75 N/A
192673 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 183.52 mm7.225 in N/A 0.006 in0.15 mm N/A 0.045 in1.14 mm N/A -442 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
442V90 N/A
192674 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 183.52 mm7.225 in N/A 0.006 in0.15 mm N/A 0.045 in1.14 mm N/A -442 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
443V75 N/A
192675 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 189.87 mm7.475 in N/A 0.006 in0.15 mm N/A 0.045 in1.14 mm N/A -443 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
443V90 N/A
192676 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 189.87 mm7.475 in N/A 0.006 in0.15 mm N/A 0.045 in1.14 mm N/A -443 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
444V75 N/A
192677 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 196.22 mm7.725 in N/A 0.006 in0.15 mm N/A 0.045 in1.14 mm N/A -444 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
444V90 N/A
192678 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 196.22 mm7.725 in N/A 0.006 in0.15 mm N/A 0.045 in1.14 mm N/A -444 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
445V75 N/A
192679 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 202.57 mm7.975 in N/A 0.006 in0.15 mm N/A 0.045 in1.14 mm N/A -445 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
445V90 N/A
192680 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 202.57 mm7.975 in N/A 0.006 in0.15 mm N/A 0.045 in1.14 mm N/A -445 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
446V75 N/A
192681 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 215.27 mm8.475 in N/A 0.006 in0.15 mm N/A 0.055 in1.40 mm N/A -446 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
446V90 N/A
192682 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 215.27 mm8.475 in N/A 0.006 in0.15 mm N/A 0.055 in1.40 mm N/A -446 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
447V75 N/A
192683 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 227.97 mm8.975 in N/A 0.006 in0.15 mm N/A 0.055 in1.40 mm N/A -447 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
447V90 N/A
192684 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 227.97 mm8.975 in N/A 0.006 in0.15 mm N/A 0.055 in1.40 mm N/A -447 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
448V75 N/A
192685 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 240.67 mm9.475 in N/A 0.006 in0.15 mm N/A 0.055 in1.40 mm N/A -448 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
448V90 N/A
192686 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 240.67 mm9.475 in N/A 0.006 in0.15 mm N/A 0.055 in1.40 mm N/A -448 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
449V75 N/A
192687 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 253.37 mm9.975 in N/A 0.006 in0.15 mm N/A 0.055 in1.40 mm N/A -449 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
449V90 N/A
192688 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 253.37 mm9.975 in N/A 0.006 in0.15 mm N/A 0.055 in1.40 mm N/A -449 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.v
450V75 N/A
192689 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 266.07 mm10.475 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -450 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
450V90 N/A
192690 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 266.07 mm10.475 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -450 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
451V75 N/A
192691 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 75 N/A 278.77 mm10.975 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -451 N/A N/A N/A N/A N/A O-rings are used in the military defense and agriculture industries.
451V90 N/A
192692 		N/A AS568 Standard O-Ring AS568 Standard O-Rings AS568 Standard O-Rings N/A Viton Viton Viton N/A 0.275 in6.99 mm N/A 90 N/A 278.77 mm10.975 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -451 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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