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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
-325 KALREZ-75 N/A
194709
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 37.47 mm1.475 in N/A 0.005 in0.12 mm N/A 0.015 in0.38 mm N/A -325 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-326 KALREZ-75 N/A
194710
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 40.64 mm1.600 in N/A 0.005 in0.12 mm N/A 0.015 in0.38 mm N/A -326 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-327 KALREZ-75 N/A
194711
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 43.82 mm1.725 in N/A 0.005 in0.12 mm N/A 0.015 in0.38 mm N/A -327 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-328 KALREZ-75 N/A
194712
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 46.99 mm1.850 in N/A 0.005 in0.12 mm N/A 0.015 in0.38 mm N/A -328 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-329 KALREZ-75 N/A
194713
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 50.17 mm1.975 in N/A 0.005 in0.12 mm N/A 0.018 in0.46 mm N/A -329 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-330 KALREZ-75 N/A
194714
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 53.34 mm2.100 in N/A 0.005 in0.12 mm N/A 0.018 in0.46 mm N/A -330 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-331 KALREZ-75 N/A
194715
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 56.52 mm2.225 in N/A 0.005 in0.12 mm N/A 0.018 in0.46 mm N/A -331 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-332 KALREZ-75 N/A
194716
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 59.69 mm2.350 in N/A 0.005 in0.12 mm N/A 0.018 in0.46 mm N/A -332 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-333 KALREZ-75 N/A
194717
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 62.87 mm2.475 in N/A 0.005 in0.12 mm N/A 0.020 in0.50 mm N/A -333 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-334 KALREZ-75 N/A
194718
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 66.04 mm2.600 in N/A 0.005 in0.12 mm N/A 0.020 in0.50 mm N/A -334 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-335 KALREZ-75 N/A
194719
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 69.22 mm2.725 in N/A 0.005 in0.12 mm N/A 0.020 in0.50 mm N/A -335 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-336 KALREZ-75 N/A
194720
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 72.39 mm2.850 in N/A 0.005 in0.12 mm N/A 0.020 in0.50 mm N/A -336 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-337 KALREZ-75 N/A
194721
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 75.57 mm2.975 in N/A 0.005 in0.12 mm N/A 0.024 in0.61 mm N/A -337 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-338 KALREZ-75 N/A
194722
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 78.74 mm3.100 in N/A 0.005 in0.12 mm N/A 0.024 in0.61 mm N/A -338 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-339 KALREZ-75 N/A
194723
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 81.92 mm3.225 in N/A 0.005 in0.12 mm N/A 0.024 in0.61 mm N/A -339 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-340 KALREZ-75 N/A
194724
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 85.09 mm3.350 in N/A 0.005 in0.12 mm N/A 0.024 in0.61 mm N/A -340 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-341 KALREZ-75 N/A
194725
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 88.27 mm3.475 in N/A 0.005 in0.12 mm N/A 0.024 in0.61 mm N/A -341 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-342 KALREZ-75 N/A
194726
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 91.44 mm3.600 in N/A 0.005 in0.12 mm N/A 0.028 in0.71 mm N/A -342 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-343 KALREZ-75 N/A
194727
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 94.62 mm3.725 in N/A 0.005 in0.12 mm N/A 0.028 in0.71 mm N/A -343 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-344 KALREZ-75 N/A
194728
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 97.79 mm3.850 in N/A 0.005 in0.12 mm N/A 0.028 in0.71 mm N/A -344 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-345 KALREZ-75 N/A
194729
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 100.97 mm3.975 in N/A 0.005 in0.12 mm N/A 0.028 in0.71 mm N/A -345 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-346 KALREZ-75 N/A
194730
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 104.14 mm4.100 in N/A 0.005 in0.12 mm N/A 0.028 in0.71 mm N/A -346 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-347 KALREZ-75 N/A
194731
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 107.32 mm4.225 in N/A 0.005 in0.12 mm N/A 0.030 in0.76 mm N/A -347 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-348 KALREZ-75 N/A
194732
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 110.49 mm4.350 in N/A 0.005 in0.12 mm N/A 0.030 in0.76 mm N/A -348 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-349 KALREZ-75 N/A
194733
N/A N/A N/A 0.210 in5.33 mm N/A 75 N/A 113.67 mm4.475 in N/A 0.005 in0.12 mm N/A 0.030 in0.76 mm N/A -349 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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