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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.

5331-12-169-3220 (GRR492-10X2SB720)

NIIN: 12-169-3220
In stock
NSN: 5331-12-169-3220
FSC Code: 5331
MPN: GRR49210X2SB720

5331-12-154-6952 (0R10-2-2-37PAB769)

NIIN: 12-154-6952
In stock
NSN: 5331-12-154-6952
FSC Code: 5331
MPN: 0R102237PAB769

5331-01-565-5384 (0R120X370NBR812)

NIIN: 01-565-5384
In stock
NSN: 5331-01-565-5384
FSC Code: 5331
MPN: 0R120X370NBR812

5331-12-170-5289 (0R119-5X3-83FKM575)

NIIN: 12-170-5289
In stock
NSN: 5331-12-170-5289
FSC Code: 5331
MPN: 0R1195X383FKM575

5331-99-104-3449 (200-119-4470)

NIIN: 99-104-3449
In stock
NSN: 5331-99-104-3449
FSC Code: 5331
MPN: 2001194470

5331-01-508-7054 (0R-017)

NIIN: 01-508-7054
In stock
NSN: 5331-01-508-7054
FSC Code: 5331
MPN: 0R017

5331-01-352-7471 (0R1-00020-001)

NIIN: 01-352-7471
In stock
NSN: 5331-01-352-7471
FSC Code: 5331
MPN: 0R100020001

5331-99-816-8651 (BSISO3601-1SIZE019)

NIIN: 99-816-8651
In stock
NSN: 5331-99-816-8651
FSC Code: 5331
MPN: BSISO36011SIZE019

5331-01-512-7305 (0N65242.53.63)

NIIN: 01-512-7305
In stock
NSN: 5331-01-512-7305
FSC Code: 5331
MPN: 0N652425363

5331-01-512-7308 (0N65270.70.63)

NIIN: 01-512-7308
In stock
NSN: 5331-01-512-7308
FSC Code: 5331
MPN: 0N652707063

5331-01-387-8325 (0N65237.53.68)

NIIN: 01-387-8325
In stock
NSN: 5331-01-387-8325
FSC Code: 5331
MPN: 0N652375368

5331-01-512-7285 (0N65212.26.63)

NIIN: 01-512-7285
In stock
NSN: 5331-01-512-7285
FSC Code: 5331
MPN: 0N652122663

5331-01-512-7479 (0N65234.53.63)

NIIN: 01-512-7479
In stock
NSN: 5331-01-512-7479
FSC Code: 5331
MPN: 0N652345363

5331-01-512-7312 (0N65275.70.63)

NIIN: 01-512-7312
In stock
NSN: 5331-01-512-7312
FSC Code: 5331
MPN: 0N652757063

5331-01-568-5348 (0N65237.53.678)

NIIN: 01-568-5348
In stock
NSN: 5331-01-568-5348
FSC Code: 5331
MPN: 0N6523753678

5331-01-512-7307 (0N65241.53.63)

NIIN: 01-512-7307
In stock
NSN: 5331-01-512-7307
FSC Code: 5331
MPN: 0N652415363

5331-00-849-8492 (29178-42)

NIIN: 00-849-8492
In stock
NSN: 5331-00-849-8492
FSC Code: 5331
MPN: 2917842

5331-00-940-8424 (29178-22)

NIIN: 00-940-8424
In stock
NSN: 5331-00-940-8424
FSC Code: 5331
MPN: 2917822

5331-01-017-7271 (29178-11)

NIIN: 01-017-7271
In stock
NSN: 5331-01-017-7271
FSC Code: 5331
MPN: 2917811

5331-00-240-9047 (29178-15)

NIIN: 00-240-9047
In stock
NSN: 5331-00-240-9047
FSC Code: 5331
MPN: 2917815

5331-01-330-6366 (2-916L1077-75)

NIIN: 01-330-6366
In stock
NSN: 5331-01-330-6366
FSC Code: 5331
MPN: 2916L107775

5331-01-200-3761 (2-916-710-608)

NIIN: 01-200-3761
In stock
NSN: 5331-01-200-3761
FSC Code: 5331
MPN: 2916710608

5331-01-090-4808 (2916FD)

NIIN: 01-090-4808
In stock
NSN: 5331-01-090-4808
FSC Code: 5331
MPN: 2916FD

5331-01-143-6321 (29145-00)

NIIN: 01-143-6321
In stock
NSN: 5331-01-143-6321
FSC Code: 5331
MPN: 2914500

5331-01-012-2732 (2912532-13)

NIIN: 01-012-2732
In stock
NSN: 5331-01-012-2732
FSC Code: 5331
MPN: 291253213

5331-01-033-1203 (2912-01)

NIIN: 01-033-1203
In stock
NSN: 5331-01-033-1203
FSC Code: 5331
MPN: 291201

5331-01-004-4885 (29100047-901)

NIIN: 01-004-4885
In stock
NSN: 5331-01-004-4885
FSC Code: 5331
MPN: 29100047901

5331-01-313-2978 (2906878M1)

NIIN: 01-313-2978
In stock
NSN: 5331-01-313-2978
FSC Code: 5331
MPN: 2906878M1

5331-01-310-3892 (290-49-2-31)

NIIN: 01-310-3892
In stock
NSN: 5331-01-310-3892
FSC Code: 5331
MPN: 29049231

5331-00-297-5391 (2900-109ALT2PC11)

NIIN: 00-297-5391
In stock
NSN: 5331-00-297-5391
FSC Code: 5331
MPN: 2900109ALT2PC11

5331-01-064-8710 (28P49)

NIIN: 01-064-8710
In stock
NSN: 5331-01-064-8710
FSC Code: 5331
MPN: 28P49

5331-00-990-8758 (28-P-240)

NIIN: 00-990-8758
In stock
NSN: 5331-00-990-8758
FSC Code: 5331
MPN: 28P240

5331-01-221-0680 (28-P-171)

NIIN: 01-221-0680
In stock
NSN: 5331-01-221-0680
FSC Code: 5331
MPN: 28P171

5331-00-432-8157 (28M66)

NIIN: 00-432-8157
In stock
NSN: 5331-00-432-8157
FSC Code: 5331
MPN: 28M66

5331-00-724-0555 (2-8L449-6)

NIIN: 00-724-0555
In stock
NSN: 5331-00-724-0555
FSC Code: 5331
MPN: 28L4496

5331-01-268-5583 (28J0410)

NIIN: 01-268-5583
In stock
NSN: 5331-01-268-5583
FSC Code: 5331
MPN: 28J0410

5331-01-101-5906 (28J0094)

NIIN: 01-101-5906
In stock
NSN: 5331-01-101-5906
FSC Code: 5331
MPN: 28J0094

5331-01-482-1035 (10-00-0012-1215)

NIIN: 01-482-1035
In stock
NSN: 5331-01-482-1035
FSC Code: 5331
MPN: 100000121215

5331-01-316-5758 (28996-8)

NIIN: 01-316-5758
In stock
NSN: 5331-01-316-5758
FSC Code: 5331
MPN: 289968

5331-00-828-5422 (28984-033)

NIIN: 00-828-5422
In stock
NSN: 5331-00-828-5422
FSC Code: 5331
MPN: 28984033

5331-00-813-2170 (28984-017)

NIIN: 00-813-2170
In stock
NSN: 5331-00-813-2170
FSC Code: 5331
MPN: 28984017

5331-00-004-4936 (28974-033)

NIIN: 00-004-4936
In stock
NSN: 5331-00-004-4936
FSC Code: 5331
MPN: 28974033

5331-00-321-1594 (28974-123)

NIIN: 00-321-1594
In stock
NSN: 5331-00-321-1594
FSC Code: 5331
MPN: 28974123

5331-00-004-4937 (28974-017)

NIIN: 00-004-4937
In stock
NSN: 5331-00-004-4937
FSC Code: 5331
MPN: 28974017

5331-01-112-7963 (28974-030)

NIIN: 01-112-7963
In stock
NSN: 5331-01-112-7963
FSC Code: 5331
MPN: 28974030

5331-01-237-4954 (28904-7)

NIIN: 01-237-4954
In stock
NSN: 5331-01-237-4954
FSC Code: 5331
MPN: 289047

5331-00-763-2505 (28904-35)

NIIN: 00-763-2505
In stock
NSN: 5331-00-763-2505
FSC Code: 5331
MPN: 2890435

5331-01-186-7528 (28904-6)

NIIN: 01-186-7528
In stock
NSN: 5331-01-186-7528
FSC Code: 5331
MPN: 289046