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O-Rings

FSC 5331: O-Rings

Federal Supply Class (FSC) 5331 covers O-rings, the round-section elastomeric seals used to seal static and dynamic joints. The catalog includes O-rings built to AS568, MIL-SPEC, and industry standards.

O-rings seal connections in hydraulic, pneumatic, fuel, and fluid systems by compressing in a groove. They are among the most widely used sealing elements in machinery.

Common materials include nitrile (Buna-N), fluorocarbon (Viton), silicone, EPDM, and PTFE, selected for fluid compatibility and temperature range. Sizes follow standard dash-number series for repeatable replacement.

5331-01-303-9577 (B1011.803)

NIIN: 01-303-9577
In stock
NSN: 5331-01-303-9577
FSC Code: 5331
MPN: B1011803

5331-01-080-9001 (B1011.503)

NIIN: 01-080-9001
In stock
NSN: 5331-01-080-9001
FSC Code: 5331
MPN: B1011503

5331-01-275-9432 (B10038-6)

NIIN: 01-275-9432
In stock
NSN: 5331-01-275-9432
FSC Code: 5331
MPN: B100386

5331-01-284-7895 (B1003.503)

NIIN: 01-284-7895
In stock
NSN: 5331-01-284-7895
FSC Code: 5331
MPN: B1003503

5331-01-280-7524 (B1002.503)

NIIN: 01-280-7524
In stock
NSN: 5331-01-280-7524
FSC Code: 5331
MPN: B1002503

5331-01-193-9394 (B1001.503)

NIIN: 01-193-9394
In stock
NSN: 5331-01-193-9394
FSC Code: 5331
MPN: B1001503

5331-01-547-8873 (60-21226-4)

NIIN: 01-547-8873
In stock
NSN: 5331-01-547-8873
FSC Code: 5331
MPN: 60212264

5331-00-402-5499 (B05245)

NIIN: 00-402-5499
In stock
NSN: 5331-00-402-5499
FSC Code: 5331
MPN: B05245

5331-00-223-8920 (B04653)

NIIN: 00-223-8920
In stock
NSN: 5331-00-223-8920
FSC Code: 5331
MPN: B04653

5331-01-547-8872 (60-21224-4)

NIIN: 01-547-8872
In stock
NSN: 5331-01-547-8872
FSC Code: 5331
MPN: 60212244

5331-00-223-8919 (B04639)

NIIN: 00-223-8919
In stock
NSN: 5331-00-223-8919
FSC Code: 5331
MPN: B04639

5331-01-363-2665 (60-210)

NIIN: 01-363-2665
In stock
NSN: 5331-01-363-2665
FSC Code: 5331
MPN: 60210

5331-01-324-4826 (B-0224-R)

NIIN: 01-324-4826
In stock
NSN: 5331-01-324-4826
FSC Code: 5331
MPN: B0224R

5331-01-324-0914 (B-0220-R-10)

NIIN: 01-324-0914
In stock
NSN: 5331-01-324-0914
FSC Code: 5331
MPN: B0220R10

5331-01-324-4825 (B-0127-R)

NIIN: 01-324-4825
In stock
NSN: 5331-01-324-4825
FSC Code: 5331
MPN: B0127R

5331-01-316-5153 (B0138QU)

NIIN: 01-316-5153
In stock
NSN: 5331-01-316-5153
FSC Code: 5331
MPN: B0138QU

5331-01-297-6301 (B001-33-0123-09)

NIIN: 01-297-6301
In stock
NSN: 5331-01-297-6301
FSC Code: 5331
MPN: B00133012309

5331-01-249-4223 (A-Z05780)

NIIN: 01-249-4223
In stock
NSN: 5331-01-249-4223
FSC Code: 5331
MPN: AZ05780

5331-01-145-9061 (AXA000484001)

NIIN: 01-145-9061
In stock
NSN: 5331-01-145-9061
FSC Code: 5331
MPN: AXA000484001

5331-01-289-7845 (A-XA0484-1)

NIIN: 01-289-7845
In stock
NSN: 5331-01-289-7845
FSC Code: 5331
MPN: AXA04841

5331-01-289-7843 (A-XA0412-1)

NIIN: 01-289-7843
In stock
NSN: 5331-01-289-7843
FSC Code: 5331
MPN: AXA04121

5331-01-334-7945 (AW180-015)

NIIN: 01-334-7945
In stock
NSN: 5331-01-334-7945
FSC Code: 5331
MPN: AW180015

5331-00-399-5718 (AW15)

NIIN: 00-399-5718
In stock
NSN: 5331-00-399-5718
FSC Code: 5331
MPN: AW15

5331-00-405-5118 (AV71-019-2)

NIIN: 00-405-5118
In stock
NSN: 5331-00-405-5118
FSC Code: 5331
MPN: AV710192

5331-01-317-8107 (AV-641-FX)

NIIN: 01-317-8107
In stock
NSN: 5331-01-317-8107
FSC Code: 5331
MPN: AV641FX

5331-00-703-1852 (AV58-538PC31)

NIIN: 00-703-1852
In stock
NSN: 5331-00-703-1852
FSC Code: 5331
MPN: AV58538PC31

5331-01-080-0746 (AV204-081)

NIIN: 01-080-0746
In stock
NSN: 5331-01-080-0746
FSC Code: 5331
MPN: AV204081

5331-00-587-3614 (AV182-430PC74)

NIIN: 00-587-3614
In stock
NSN: 5331-00-587-3614
FSC Code: 5331
MPN: AV182430PC74

5331-00-587-3577 (AV182-430PC71)

NIIN: 00-587-3577
In stock
NSN: 5331-00-587-3577
FSC Code: 5331
MPN: AV182430PC71

5331-01-218-8848 (AV176-894)

NIIN: 01-218-8848
In stock
NSN: 5331-01-218-8848
FSC Code: 5331
MPN: AV176894

5331-01-126-0834 (AV16A1380)

NIIN: 01-126-0834
In stock
NSN: 5331-01-126-0834
FSC Code: 5331
MPN: AV16A1380

5331-01-338-0259 (AV160-700)

NIIN: 01-338-0259
In stock
NSN: 5331-01-338-0259
FSC Code: 5331
MPN: AV160700

5331-01-338-0260 (AV160-700)

NIIN: 01-338-0260
In stock
NSN: 5331-01-338-0260
FSC Code: 5331
MPN: AV160700

5331-01-338-6655 (AV160-700)

NIIN: 01-338-6655
In stock
NSN: 5331-01-338-6655
FSC Code: 5331
MPN: AV160700

5331-01-251-9198 (AV-107-4)

NIIN: 01-251-9198
In stock
NSN: 5331-01-251-9198
FSC Code: 5331
MPN: AV1074

5331-01-249-2811 (AV-113-4)

NIIN: 01-249-2811
In stock
NSN: 5331-01-249-2811
FSC Code: 5331
MPN: AV1134

5331-01-338-6654 (AV160-700)

NIIN: 01-338-6654
In stock
NSN: 5331-01-338-6654
FSC Code: 5331
MPN: AV160700

5331-01-315-7282 (AV)

NIIN: 01-315-7282
In stock
NSN: 5331-01-315-7282
FSC Code: 5331
MPN: AV

5331-01-412-6372 (601-2)

NIIN: 01-412-6372
In stock
NSN: 5331-01-412-6372
FSC Code: 5331
MPN: 6012

5331-01-546-8376 (601015-2)

NIIN: 01-546-8376
In stock
NSN: 5331-01-546-8376
FSC Code: 5331
MPN: 6010152

5331-01-546-8372 (601015-0)

NIIN: 01-546-8372
In stock
NSN: 5331-01-546-8372
FSC Code: 5331
MPN: 6010150

5331-01-546-8373 (601015-8)

NIIN: 01-546-8373
In stock
NSN: 5331-01-546-8373
FSC Code: 5331
MPN: 6010158

5331-01-546-5565 (601014-7)

NIIN: 01-546-5565
In stock
NSN: 5331-01-546-5565
FSC Code: 5331
MPN: 6010147

5331-01-333-4463 (AT4526)

NIIN: 01-333-4463
In stock
NSN: 5331-01-333-4463
FSC Code: 5331
MPN: AT4526

5331-01-507-3962 (600P00788-0001)

NIIN: 01-507-3962
In stock
NSN: 5331-01-507-3962
FSC Code: 5331
MPN: 600P007880001

5331-01-518-9345 (600AL-12)

NIIN: 01-518-9345
In stock
NSN: 5331-01-518-9345
FSC Code: 5331
MPN: 600AL12

5331-01-188-4614 (AT29941)

NIIN: 01-188-4614
In stock
NSN: 5331-01-188-4614
FSC Code: 5331
MPN: AT29941

5331-01-340-8228 (600991-12)

NIIN: 01-340-8228
In stock
NSN: 5331-01-340-8228
FSC Code: 5331
MPN: 60099112