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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
-428 KALREZ-90 N/A
194434
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 123.19 mm4.850 in N/A 0.006 in0.15 mm N/A 0.033 in0.83 mm N/A -428 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-429 KALREZ-90 N/A
194435
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 126.37 mm4.975 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -429 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-430 KALREZ-90 N/A
194436
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 129.54 mm5.100 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -430 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-431 KALREZ-90 N/A
194437
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 132.72 mm5.225 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -431 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-432 KALREZ-90 N/A
194438
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 135.89 mm5.350 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -432 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-433 KALREZ-90 N/A
194439
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 139.07 mm5.475 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -433 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-434 KALREZ-90 N/A
194440
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 142.24 mm5.600 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -434 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-435 KALREZ-90 N/A
194441
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 145.42 mm5.725 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -435 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-436 KALREZ-90 N/A
194442
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 148.59 mm5.850 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -436 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-437 KALREZ-90 N/A
194443
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 151.77 mm5.975 in N/A 0.006 in0.15 mm N/A 0.037 in0.93 mm N/A -437 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-438 KALREZ-90 N/A
194444
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 158.12 mm6.225 in N/A 0.006 in0.15 mm N/A 0.040 in1.01 mm N/A -438 N/A N/A N/A N/A O-rings are used in the military, automotive, aerospace and agriculture industries.
-439 KALREZ-90 N/A
194445
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-440 KALREZ-90 N/A
194446
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-441 KALREZ-90 N/A
194447
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-442 KALREZ-90 N/A
194448
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-443 KALREZ-90 N/A
194449
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-444 KALREZ-90 N/A
194450
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-445 KALREZ-90 N/A
194451
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-446 KALREZ-90 N/A
194452
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-447 KALREZ-90 N/A
194453
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-448 KALREZ-90 N/A
194454
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-449 KALREZ-90 N/A
194455
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-450 KALREZ-90 N/A
194456
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-451 KALREZ-90 N/A
194457
N/A N/A 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 O-rings are used in the military, automotive, aerospace and agriculture industries.
-452 KALREZ-90 N/A
194458
N/A N/A N/A 0.275 in6.99 mm N/A 90 N/A 291.47 mm11.475 in N/A 0.006 in0.15 mm N/A 0.060 in1.52 mm N/A -452 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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