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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.

5331-00-897-6341 (A25626)

NIIN: 00-897-6341
In stock
NSN: 5331-00-897-6341
FSC Code: 5331
MPN: A25626

5331-01-561-8606 (5399-037T-200)

NIIN: 01-561-8606
In stock
NSN: 5331-01-561-8606
FSC Code: 5331
MPN: 5399037T200

5331-01-352-5758 (5-39MIL3-0803-14)

NIIN: 01-352-5758
In stock
NSN: 5331-01-352-5758
FSC Code: 5331
MPN: 539MIL3080314

5331-01-562-0264 (5399-039T)

NIIN: 01-562-0264
In stock
NSN: 5331-01-562-0264
FSC Code: 5331
MPN: 5399039T

5331-01-220-0151 (A25141-213-STD)

NIIN: 01-220-0151
In stock
NSN: 5331-01-220-0151
FSC Code: 5331
MPN: A25141213STD

5331-00-613-9100 (A25141-2244067-70)

NIIN: 00-613-9100
In stock
NSN: 5331-00-613-9100
FSC Code: 5331
MPN: A25141224406770

5331-01-214-1923 (A25141-258-4058/90)

NIIN: 01-214-1923
In stock
NSN: 5331-01-214-1923
FSC Code: 5331
MPN: A25141258405890

5331-00-841-4817 (A25141-131)

NIIN: 00-841-4817
In stock
NSN: 5331-00-841-4817
FSC Code: 5331
MPN: A25141131

5331-00-803-7535 (A25141-210-4058-90)

NIIN: 00-803-7535
In stock
NSN: 5331-00-803-7535
FSC Code: 5331
MPN: A25141210405890

5331-01-194-6104 (A25141-029-TEF)

NIIN: 01-194-6104
In stock
NSN: 5331-01-194-6104
FSC Code: 5331
MPN: A25141029TEF

5331-00-063-2526 (A25141-114STD)

NIIN: 00-063-2526
In stock
NSN: 5331-00-063-2526
FSC Code: 5331
MPN: A25141114STD

5331-00-078-0141 (A25141-011STD)

NIIN: 00-078-0141
In stock
NSN: 5331-00-078-0141
FSC Code: 5331
MPN: A25141011STD

5331-01-117-1521 (A25141-115-STD)

NIIN: 01-117-1521
In stock
NSN: 5331-01-117-1521
FSC Code: 5331
MPN: A25141115STD

5331-00-063-2527 (A25141-113STD)

NIIN: 00-063-2527
In stock
NSN: 5331-00-063-2527
FSC Code: 5331
MPN: A25141113STD

5331-01-220-0152 (A25141-030-STD)

NIIN: 01-220-0152
In stock
NSN: 5331-01-220-0152
FSC Code: 5331
MPN: A25141030STD

5331-00-837-3113 (A25141-111STD)

NIIN: 00-837-3113
In stock
NSN: 5331-00-837-3113
FSC Code: 5331
MPN: A25141111STD

5331-00-063-2525 (A25141-012STD)

NIIN: 00-063-2525
In stock
NSN: 5331-00-063-2525
FSC Code: 5331
MPN: A25141012STD

5331-00-716-4343 (A25101-9)

NIIN: 00-716-4343
In stock
NSN: 5331-00-716-4343
FSC Code: 5331
MPN: A251019

5331-00-818-1461 (A25101-5)

NIIN: 00-818-1461
In stock
NSN: 5331-00-818-1461
FSC Code: 5331
MPN: A251015

5331-01-365-3330 (53-912)

NIIN: 01-365-3330
In stock
NSN: 5331-01-365-3330
FSC Code: 5331
MPN: 53912

5331-01-276-5763 (A-24GV0033)

NIIN: 01-276-5763
In stock
NSN: 5331-01-276-5763
FSC Code: 5331
MPN: A24GV0033

5331-01-560-7200 (5391-4)

NIIN: 01-560-7200
In stock
NSN: 5331-01-560-7200
FSC Code: 5331
MPN: 53914

5331-01-365-3148 (53-916)

NIIN: 01-365-3148
In stock
NSN: 5331-01-365-3148
FSC Code: 5331
MPN: 53916

5331-01-276-8428 (A-24IS0031)

NIIN: 01-276-8428
In stock
NSN: 5331-01-276-8428
FSC Code: 5331
MPN: A24IS0031

5331-01-285-4802 (A247C-111)

NIIN: 01-285-4802
In stock
NSN: 5331-01-285-4802
FSC Code: 5331
MPN: A247C111

5331-01-276-8429 (A-24IS0029)

NIIN: 01-276-8429
In stock
NSN: 5331-01-276-8429
FSC Code: 5331
MPN: A24IS0029

5331-01-268-6819 (A24754)

NIIN: 01-268-6819
In stock
NSN: 5331-01-268-6819
FSC Code: 5331
MPN: A24754

5331-01-113-9858 (A24679-2)

NIIN: 01-113-9858
In stock
NSN: 5331-01-113-9858
FSC Code: 5331
MPN: A246792

5331-00-024-6479 (A-246-C)

NIIN: 00-024-6479
In stock
NSN: 5331-00-024-6479
FSC Code: 5331
MPN: A246C

5331-00-183-0831 (A24453)

NIIN: 00-183-0831
In stock
NSN: 5331-00-183-0831
FSC Code: 5331
MPN: A24453

5331-01-221-0681 (A24400-514)

NIIN: 01-221-0681
In stock
NSN: 5331-01-221-0681
FSC Code: 5331
MPN: A24400514

5331-01-229-8084 (A24400-509)

NIIN: 01-229-8084
In stock
NSN: 5331-01-229-8084
FSC Code: 5331
MPN: A24400509

5331-01-220-5125 (A24400-512)

NIIN: 01-220-5125
In stock
NSN: 5331-01-220-5125
FSC Code: 5331
MPN: A24400512

5331-01-220-5124 (A24400-513)

NIIN: 01-220-5124
In stock
NSN: 5331-01-220-5124
FSC Code: 5331
MPN: A24400513

5331-01-229-8082 (A24400-515)

NIIN: 01-229-8082
In stock
NSN: 5331-01-229-8082
FSC Code: 5331
MPN: A24400515

5331-01-229-8087 (A24400-505)

NIIN: 01-229-8087
In stock
NSN: 5331-01-229-8087
FSC Code: 5331
MPN: A24400505

5331-01-220-0229 (A24400-507)

NIIN: 01-220-0229
In stock
NSN: 5331-01-220-0229
FSC Code: 5331
MPN: A24400507

5331-01-229-8083 (A24400-511)

NIIN: 01-229-8083
In stock
NSN: 5331-01-229-8083
FSC Code: 5331
MPN: A24400511

5331-01-212-6153 (A-24242)

NIIN: 01-212-6153
In stock
NSN: 5331-01-212-6153
FSC Code: 5331
MPN: A24242

5331-01-123-6202 (A-23428-9)

NIIN: 01-123-6202
In stock
NSN: 5331-01-123-6202
FSC Code: 5331
MPN: A234289

5331-00-838-6804 (A-23428-20)

NIIN: 00-838-6804
In stock
NSN: 5331-00-838-6804
FSC Code: 5331
MPN: A2342820

5331-00-997-6934 (A23316)

NIIN: 00-997-6934
In stock
NSN: 5331-00-997-6934
FSC Code: 5331
MPN: A23316

5331-00-258-6459 (A23315)

NIIN: 00-258-6459
In stock
NSN: 5331-00-258-6459
FSC Code: 5331
MPN: A23315

5331-01-463-0010 (53-812844)

NIIN: 01-463-0010
In stock
NSN: 5331-01-463-0010
FSC Code: 5331
MPN: 53812844

5331-01-521-8434 (XX00059)

NIIN: 01-521-8434
In stock
NSN: 5331-01-521-8434
FSC Code: 5331
MPN: XX00059

5331-01-143-1700 (A-2278-60)

NIIN: 01-143-1700
In stock
NSN: 5331-01-143-1700
FSC Code: 5331
MPN: A227860

5331-01-190-1877 (A2264-9)

NIIN: 01-190-1877
In stock
NSN: 5331-01-190-1877
FSC Code: 5331
MPN: A22649

5331-00-958-4435 (A-226TH1058)

NIIN: 00-958-4435
In stock
NSN: 5331-00-958-4435
FSC Code: 5331
MPN: A226TH1058