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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 nFor more information, please see: Comparison Properties Chart, PTFE Encapsulated O-rings, Material Shelf Life, and O-ring Groove Design Chart. Perfluoroelastomer is also known as FKKM and Perfloro.

Parts resist over 1,800 different chemicals, while offering the high temperature stability of PTFE (327°C). They’re used in aggressive chemical processing, pharmaceutical, oil rcovery, gas recovery, and aerospace applications. The proven, long-term performance of Kalrez® parts can mean less repairs, seal changes, inspections and equipment uptime for greater productivity and yield.
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 KALREZ-70 N/A
193934 		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 KALREZ-70 N/A
193935 		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 KALREZ-70 N/A
193936 		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 KALREZ-70 N/A
193937 		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 KALREZ-70 N/A
193938 		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 KALREZ-70 N/A
193939 		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 KALREZ-70 N/A
193940 		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 KALREZ-70 N/A
193941 		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 KALREZ-70 N/A
193942 		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 KALREZ-70 N/A
193943 		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 KALREZ-70 N/A
193944 		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 KALREZ-70 N/A
193945 		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 KALREZ-70 N/A
193946 		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 KALREZ-70 N/A
193947 		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 KALREZ-70 N/A
193948 		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 KALREZ-70 N/A
193949 		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 KALREZ-70 N/A
193950 		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 KALREZ-70 N/A
193951 		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 KALREZ-70 N/A
193952 		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 KALREZ-70 N/A
193953 		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 KALREZ-70 N/A
193954 		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 KALREZ-70 N/A
193955 		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 KALREZ-70 N/A
193956 		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 KALREZ-70 N/A
193957 		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 KALREZ-70 N/A
193958 		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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