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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.

5331-01-447-2124 (C-83771ITEM)

NIIN: 01-447-2124
In stock
NSN: 5331-01-447-2124
FSC Code: 5331
MPN: C83771ITEM

5331-01-417-4669 (C8308-001-226)

NIIN: 01-417-4669
In stock
NSN: 5331-01-417-4669
FSC Code: 5331
MPN: C8308001226

5331-01-417-4616 (C8307-001-226)

NIIN: 01-417-4616
In stock
NSN: 5331-01-417-4616
FSC Code: 5331
MPN: C8307001226

5331-00-899-3276 (S-304-2)

NIIN: 00-899-3276
In stock
NSN: 5331-00-899-3276
FSC Code: 5331
MPN: S3042

5331-01-352-1083 (C8104255)

NIIN: 01-352-1083
In stock
NSN: 5331-01-352-1083
FSC Code: 5331
MPN: C8104255

5331-00-451-6629 (S30-20)

NIIN: 00-451-6629
In stock
NSN: 5331-00-451-6629
FSC Code: 5331
MPN: S3020

5331-01-323-5457 (S30346)

NIIN: 01-323-5457
In stock
NSN: 5331-01-323-5457
FSC Code: 5331
MPN: S30346

5331-00-859-6340 (S-300)

NIIN: 00-859-6340
In stock
NSN: 5331-00-859-6340
FSC Code: 5331
MPN: S300

5331-01-245-3992 (S2L346)

NIIN: 01-245-3992
In stock
NSN: 5331-01-245-3992
FSC Code: 5331
MPN: S2L346

5331-01-304-9257 (S2N-040)

NIIN: 01-304-9257
In stock
NSN: 5331-01-304-9257
FSC Code: 5331
MPN: S2N040

5331-01-304-9258 (S2N-226)

NIIN: 01-304-9258
In stock
NSN: 5331-01-304-9258
FSC Code: 5331
MPN: S2N226

5331-01-044-0780 (S2A224)

NIIN: 01-044-0780
In stock
NSN: 5331-01-044-0780
FSC Code: 5331
MPN: S2A224

5331-01-456-5695 (C-7771)

NIIN: 01-456-5695
In stock
NSN: 5331-01-456-5695
FSC Code: 5331
MPN: C7771

5331-00-543-6508 (S287-1088-1)

NIIN: 00-543-6508
In stock
NSN: 5331-00-543-6508
FSC Code: 5331
MPN: S28710881

5331-01-284-0699 (S2-8504)

NIIN: 01-284-0699
In stock
NSN: 5331-01-284-0699
FSC Code: 5331
MPN: S28504

5331-00-684-1550 (S2672-10T)

NIIN: 00-684-1550
In stock
NSN: 5331-00-684-1550
FSC Code: 5331
MPN: S267210T

5331-00-406-0135 (S26-03042-00)

NIIN: 00-406-0135
In stock
NSN: 5331-00-406-0135
FSC Code: 5331
MPN: S260304200

5331-01-242-0446 (S2-4L)

NIIN: 01-242-0446
In stock
NSN: 5331-01-242-0446
FSC Code: 5331
MPN: S24L

5331-00-603-0147 (S2439939-4)

NIIN: 00-603-0147
In stock
NSN: 5331-00-603-0147
FSC Code: 5331
MPN: S24399394

5331-00-603-0149 (S2439939-8)

NIIN: 00-603-0149
In stock
NSN: 5331-00-603-0149
FSC Code: 5331
MPN: S24399398

5331-00-603-0148 (S2439939-6)

NIIN: 00-603-0148
In stock
NSN: 5331-00-603-0148
FSC Code: 5331
MPN: S24399396

5331-00-826-6982 (S2439939-3)

NIIN: 00-826-6982
In stock
NSN: 5331-00-826-6982
FSC Code: 5331
MPN: S24399393

5331-00-298-0345 (S2439939-20)

NIIN: 00-298-0345
In stock
NSN: 5331-00-298-0345
FSC Code: 5331
MPN: S243993920

5331-01-550-4749 (C700109-1)

NIIN: 01-550-4749
In stock
NSN: 5331-01-550-4749
FSC Code: 5331
MPN: C7001091

5331-00-580-4145 (S2439939-212)

NIIN: 00-580-4145
In stock
NSN: 5331-00-580-4145
FSC Code: 5331
MPN: S2439939212

5331-00-603-0146 (S2439939-111)

NIIN: 00-603-0146
In stock
NSN: 5331-00-603-0146
FSC Code: 5331
MPN: S2439939111

5331-00-603-0144 (S2439939-10)

NIIN: 00-603-0144
In stock
NSN: 5331-00-603-0144
FSC Code: 5331
MPN: S243993910

5331-00-603-0145 (S2439939-110)

NIIN: 00-603-0145
In stock
NSN: 5331-00-603-0145
FSC Code: 5331
MPN: S2439939110

5331-00-618-5607 (S2439939-112)

NIIN: 00-618-5607
In stock
NSN: 5331-00-618-5607
FSC Code: 5331
MPN: S2439939112

5331-01-236-5057 (S-240-Z-1)

NIIN: 01-236-5057
In stock
NSN: 5331-01-236-5057
FSC Code: 5331
MPN: S240Z1

5331-01-525-0914 (C67642-004)

NIIN: 01-525-0914
In stock
NSN: 5331-01-525-0914
FSC Code: 5331
MPN: C67642004

5331-01-394-6421 (OD30139P13)

NIIN: 01-394-6421
In stock
NSN: 5331-01-394-6421
FSC Code: 5331
MPN: OD30139P13

5331-01-351-7600 (C641501132RAA)

NIIN: 01-351-7600
In stock
NSN: 5331-01-351-7600
FSC Code: 5331
MPN: C641501132RAA

5331-01-137-7649 (S2085)

NIIN: 01-137-7649
In stock
NSN: 5331-01-137-7649
FSC Code: 5331
MPN: S2085

5331-01-236-5056 (S-200-Z-6)

NIIN: 01-236-5056
In stock
NSN: 5331-01-236-5056
FSC Code: 5331
MPN: S200Z6

5331-01-236-5059 (S-200-Z-4)

NIIN: 01-236-5059
In stock
NSN: 5331-01-236-5059
FSC Code: 5331
MPN: S200Z4

5331-01-236-5058 (S-200-Z-3)

NIIN: 01-236-5058
In stock
NSN: 5331-01-236-5058
FSC Code: 5331
MPN: S200Z3

5331-01-321-2458 (S-1810-37)

NIIN: 01-321-2458
In stock
NSN: 5331-01-321-2458
FSC Code: 5331
MPN: S181037

5331-01-321-2457 (S-1810-10)

NIIN: 01-321-2457
In stock
NSN: 5331-01-321-2457
FSC Code: 5331
MPN: S181010

5331-01-010-9802 (S-1748)

NIIN: 01-010-9802
In stock
NSN: 5331-01-010-9802
FSC Code: 5331
MPN: S1748

5331-01-173-0870 (S16824)

NIIN: 01-173-0870
In stock
NSN: 5331-01-173-0870
FSC Code: 5331
MPN: S16824

5331-00-618-2531 (S1635-91097-000)

NIIN: 00-618-2531
In stock
NSN: 5331-00-618-2531
FSC Code: 5331
MPN: S163591097000

5331-01-239-8642 (S-1630)

NIIN: 01-239-8642
In stock
NSN: 5331-01-239-8642
FSC Code: 5331
MPN: S1630

5331-00-860-2119 (S1461)

NIIN: 00-860-2119
In stock
NSN: 5331-00-860-2119
FSC Code: 5331
MPN: S1461

5331-01-317-5154 (S1462)

NIIN: 01-317-5154
In stock
NSN: 5331-01-317-5154
FSC Code: 5331
MPN: S1462

5331-00-838-2832 (S14-50-4827)

NIIN: 00-838-2832
In stock
NSN: 5331-00-838-2832
FSC Code: 5331
MPN: S14504827

5331-00-854-7175 (S1423CAG9900)

NIIN: 00-854-7175
In stock
NSN: 5331-00-854-7175
FSC Code: 5331
MPN: S1423CAG9900

5331-00-854-7177 (S1423CAK9900)

NIIN: 00-854-7177
In stock
NSN: 5331-00-854-7177
FSC Code: 5331
MPN: S1423CAK9900