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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.

This elastomer possesses mechanical properties similar to Viton®, with the exception of its slightly lower compression set resistance. It is more suitable for sensitive applications where lighter compressive forces are applied to energize the seal. This core has a Shore A hardness of 70 but it also offers a broader operating temperature range of -80°F to +500°F. (-62°C to +260°C).
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

Units of Measure

Tube Size O.D.

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O-Ring Industries

Quantity
-274 F-70 N/A
195056 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 253.59 mm9.984 in N/A 0.004 in0.10 mm N/A 0.055 in1.40 mm N/A -274 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-275 F-70 N/A
195057 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 266.29 mm10.484 in N/A 0.004 in0.10 mm N/A 0.055 in1.40 mm N/A -275 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-276 F-70 N/A
195058 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 278.99 mm10.984 in N/A 0.004 in0.10 mm N/A 0.065 in1.65 mm N/A -276 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-277 F-70 N/A
195059 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 291.69 mm11.484 in N/A 0.004 in0.10 mm N/A 0.065 in1.65 mm N/A -277 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-278 F-70 N/A
195060 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 304.39 mm11.984 in N/A 0.004 in0.10 mm N/A 0.065 in1.65 mm N/A -278 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-279 F-70 N/A
195061 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 329.79 mm12.984 in N/A 0.004 in0.10 mm N/A 0.065 in1.65 mm N/A -279 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-280 F-70 N/A
195062 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 355.19 mm13.984 in N/A 0.004 in0.10 mm N/A 0.065 in1.65 mm N/A -280 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-281 F-70 N/A
195063 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 380.59 mm14.984 in N/A 0.004 in0.10 mm N/A 0.065 in1.65 mm N/A -281 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-282 F-70 N/A
195064 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 405.26 mm15.955 in N/A 0.004 in0.10 mm N/A 0.075 in1.90 mm N/A -282 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-283 F-70 N/A
195065 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 430.66 mm16.955 in N/A 0.004 in0.10 mm N/A 0.080 in2.05 mm N/A -283 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-284 F-70 N/A
195066 		N/A N/A N/A 0.139 in3.53 mm N/A 70 N/A 456.06 mm17.955 in N/A 0.004 in0.10 mm N/A 0.085 in2.15 mm N/A -284 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-309 F-70 N/A
195067 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 10.46 mm0.412 in N/A 0.005 in0.12 mm N/A 0.005 in0.12 mm N/A -309 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-310 F-70 N/A
195068 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 12.07 mm0.475 in N/A 0.005 in0.12 mm N/A 0.005 in0.12 mm N/A -310 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-311 F-70 N/A
195069 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 13.64 mm0.537 in N/A 0.005 in0.12 mm N/A 0.007 in0.17 mm N/A -311 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-312 F-70 N/A
195070 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 15.24 mm0.600 in N/A 0.005 in0.12 mm N/A 0.009 in0.22 mm N/A -312 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-313 F-70 N/A
195071 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 16.81 mm0.662 in N/A 0.005 in0.12 mm N/A 0.009 in0.22 mm N/A -313 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-314 F-70 N/A
195072 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 18.42 mm0.725 in N/A 0.005 in0.12 mm N/A 0.010 in0.25 mm N/A -314 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-315 F-70 N/A
195073 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 19.99 mm0.787 in N/A 0.005 in0.12 mm N/A 0.010 in0.25 mm N/A -315 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-316 F-70 N/A
195074 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 21.59 mm0.850 in N/A 0.005 in0.12 mm N/A 0.010 in0.25 mm N/A -316 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-317 F-70 N/A
195075 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 23.16 mm0.912 in N/A 0.005 in0.12 mm N/A 0.010 in0.25 mm N/A -317 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-318 F-70 N/A
195076 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 24.77 mm0.975 in N/A 0.005 in0.12 mm N/A 0.010 in0.25 mm N/A -318 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-319 F-70 N/A
195077 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 26.34 mm1.037 in N/A 0.005 in0.12 mm N/A 0.010 in0.25 mm N/A -319 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-320 F-70 N/A
195078 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 27.94 mm1.100 in N/A 0.005 in0.12 mm N/A 0.012 in0.30 mm N/A -320 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-321 F-70 N/A
195079 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 29.51 mm1.162 in N/A 0.005 in0.12 mm N/A 0.012 in0.30 mm N/A -321 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-322 F-70 N/A
195080 		N/A N/A N/A 0.210 in5.33 mm N/A 70 N/A 31.12 mm1.225 in N/A 0.005 in0.12 mm N/A 0.012 in0.30 mm N/A -322 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
Unit of Measure
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