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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.

5331-01-508-8281 (515-7067398-F128)

NIIN: 01-508-8281
In stock
NSN: 5331-01-508-8281
FSC Code: 5331
MPN: 5157067398F128

5331-01-508-8284 (515-7383634-F124)

NIIN: 01-508-8284
In stock
NSN: 5331-01-508-8284
FSC Code: 5331
MPN: 5157383634F124

5331-01-508-8277 (515-7383634-F112)

NIIN: 01-508-8277
In stock
NSN: 5331-01-508-8277
FSC Code: 5331
MPN: 5157383634F112

5331-01-497-3268 (5-157)

NIIN: 01-497-3268
In stock
NSN: 5331-01-497-3268
FSC Code: 5331
MPN: 5157

5331-01-391-1080 (5-156L0946-60)

NIIN: 01-391-1080
In stock
NSN: 5331-01-391-1080
FSC Code: 5331
MPN: 5156L094660

5331-01-506-6707 (ARP568-212MILG22050GR1)

NIIN: 01-506-6707
In stock
NSN: 5331-01-506-6707
FSC Code: 5331
MPN: ARP568212MILG22050GR1

5331-01-508-8275 (515-7383634-F126)

NIIN: 01-508-8275
In stock
NSN: 5331-01-508-8275
FSC Code: 5331
MPN: 5157383634F126

5331-01-278-6710 (990-017-006)

NIIN: 01-278-6710
In stock
NSN: 5331-01-278-6710
FSC Code: 5331
MPN: 990017006

5331-01-278-6711 (990-002-006)

NIIN: 01-278-6711
In stock
NSN: 5331-01-278-6711
FSC Code: 5331
MPN: 990002006

5331-00-753-2154 (98M71-124PC43)

NIIN: 00-753-2154
In stock
NSN: 5331-00-753-2154
FSC Code: 5331
MPN: 98M71124PC43

5331-01-313-5701 (9-90002-016)

NIIN: 01-313-5701
In stock
NSN: 5331-01-313-5701
FSC Code: 5331
MPN: 990002016

5331-01-258-8129 (990-0000-704)

NIIN: 01-258-8129
In stock
NSN: 5331-01-258-8129
FSC Code: 5331
MPN: 9900000704

5331-00-753-2153 (98M71-124PC32)

NIIN: 00-753-2153
In stock
NSN: 5331-00-753-2153
FSC Code: 5331
MPN: 98M71124PC32

5331-00-753-2152 (98M71-124PC4)

NIIN: 00-753-2152
In stock
NSN: 5331-00-753-2152
FSC Code: 5331
MPN: 98M71124PC4

5331-01-317-8105 (98H1137-6)

NIIN: 01-317-8105
In stock
NSN: 5331-01-317-8105
FSC Code: 5331
MPN: 98H11376

5331-00-477-4597 (98A145-1)

NIIN: 00-477-4597
In stock
NSN: 5331-00-477-4597
FSC Code: 5331
MPN: 98A1451

5331-00-800-3098 (9893430P1)

NIIN: 00-800-3098
In stock
NSN: 5331-00-800-3098
FSC Code: 5331
MPN: 9893430P1

5331-01-313-6763 (98-919)

NIIN: 01-313-6763
In stock
NSN: 5331-01-313-6763
FSC Code: 5331
MPN: 98919

5331-00-172-7316 (98-9021-113)

NIIN: 00-172-7316
In stock
NSN: 5331-00-172-7316
FSC Code: 5331
MPN: 989021113

5331-01-513-1074 (5-151-N0304-75)

NIIN: 01-513-1074
In stock
NSN: 5331-01-513-1074
FSC Code: 5331
MPN: 5151N030475

5331-01-126-0864 (98801-03)

NIIN: 01-126-0864
In stock
NSN: 5331-01-126-0864
FSC Code: 5331
MPN: 9880103

5331-00-964-0359 (9871-501X14PC31)

NIIN: 00-964-0359
In stock
NSN: 5331-00-964-0359
FSC Code: 5331
MPN: 9871501X14PC31

5331-00-964-0362 (9871-501X14PC33)

NIIN: 00-964-0362
In stock
NSN: 5331-00-964-0362
FSC Code: 5331
MPN: 9871501X14PC33

5331-01-353-1876 (5-15-10131)

NIIN: 01-353-1876
In stock
NSN: 5331-01-353-1876
FSC Code: 5331
MPN: 51510131

5331-00-964-0360 (9871-501X14PC32)

NIIN: 00-964-0360
In stock
NSN: 5331-00-964-0360
FSC Code: 5331
MPN: 9871501X14PC32

5331-00-775-3987 (9868-091X4REVBPC14)

NIIN: 00-775-3987
In stock
NSN: 5331-00-775-3987
FSC Code: 5331
MPN: 9868091X4REVBPC14

5331-00-641-0770 (9864-263X2)

NIIN: 00-641-0770
In stock
NSN: 5331-00-641-0770
FSC Code: 5331
MPN: 9864263X2

5331-00-837-8969 (9864-632X1PC10)

NIIN: 00-837-8969
In stock
NSN: 5331-00-837-8969
FSC Code: 5331
MPN: 9864632X1PC10

5331-00-542-1854 (9864-252X2PC12)

NIIN: 00-542-1854
In stock
NSN: 5331-00-542-1854
FSC Code: 5331
MPN: 9864252X2PC12

5331-00-752-8385 (9861-011X44PC39)

NIIN: 00-752-8385
In stock
NSN: 5331-00-752-8385
FSC Code: 5331
MPN: 9861011X44PC39

5331-00-752-8384 (9861-011X44PC40)

NIIN: 00-752-8384
In stock
NSN: 5331-00-752-8384
FSC Code: 5331
MPN: 9861011X44PC40

5331-00-752-8386 (9861-011X44PC38)

NIIN: 00-752-8386
In stock
NSN: 5331-00-752-8386
FSC Code: 5331
MPN: 9861011X44PC38

5331-00-752-8169 (9861-011X14PC39)

NIIN: 00-752-8169
In stock
NSN: 5331-00-752-8169
FSC Code: 5331
MPN: 9861011X14PC39

5331-00-752-8175 (9861-011X14PC42)

NIIN: 00-752-8175
In stock
NSN: 5331-00-752-8175
FSC Code: 5331
MPN: 9861011X14PC42

5331-00-752-8387 (9861-011X44PC37)

NIIN: 00-752-8387
In stock
NSN: 5331-00-752-8387
FSC Code: 5331
MPN: 9861011X44PC37

5331-00-752-8170 (9861-011X14PC40)

NIIN: 00-752-8170
In stock
NSN: 5331-00-752-8170
FSC Code: 5331
MPN: 9861011X14PC40

5331-00-752-8171 (9861-011X14PC41)

NIIN: 00-752-8171
In stock
NSN: 5331-00-752-8171
FSC Code: 5331
MPN: 9861011X14PC41

5331-01-452-4263 (5-148L998-70)

NIIN: 01-452-4263
In stock
NSN: 5331-01-452-4263
FSC Code: 5331
MPN: 5148L99870

5331-01-390-7667 (5.1474.0)

NIIN: 01-390-7667
In stock
NSN: 5331-01-390-7667
FSC Code: 5331
MPN: 514740

5331-01-390-5942 (5.1473.0)

NIIN: 01-390-5942
In stock
NSN: 5331-01-390-5942
FSC Code: 5331
MPN: 514730

5331-01-390-5944 (5.1468.0)

NIIN: 01-390-5944
In stock
NSN: 5331-01-390-5944
FSC Code: 5331
MPN: 514680

5331-01-390-7668 (5.1465.0)

NIIN: 01-390-7668
In stock
NSN: 5331-01-390-7668
FSC Code: 5331
MPN: 514650

5331-01-389-7388 (5145-L4231)

NIIN: 01-389-7388
In stock
NSN: 5331-01-389-7388
FSC Code: 5331
MPN: 5145L4231

5331-01-389-7376 (5145-L4231-1)

NIIN: 01-389-7376
In stock
NSN: 5331-01-389-7376
FSC Code: 5331
MPN: 5145L42311

5331-01-390-7665 (5.1459.0)

NIIN: 01-390-7665
In stock
NSN: 5331-01-390-7665
FSC Code: 5331
MPN: 514590

5331-01-390-7664 (5.1455.0)

NIIN: 01-390-7664
In stock
NSN: 5331-01-390-7664
FSC Code: 5331
MPN: 514550

5331-00-542-1853 (9852-151X1PC40)

NIIN: 00-542-1853
In stock
NSN: 5331-00-542-1853
FSC Code: 5331
MPN: 9852151X1PC40

5331-00-080-4475 (985194PC18F0RPC3)

NIIN: 00-080-4475
In stock
NSN: 5331-00-080-4475
FSC Code: 5331
MPN: 985194PC18F0RPC3