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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.

5331-01-592-1680 (3255722-4)

NIIN: 01-592-1680
In stock
NSN: 5331-01-592-1680
FSC Code: 5331
MPN: 32557224

5331-01-592-0660 (E10-23649-1)

NIIN: 01-592-0660
In stock
NSN: 5331-01-592-0660
FSC Code: 5331
MPN: E10236491

5331-01-592-1480 (M83248/1-139)

NIIN: 01-592-1480
In stock
NSN: 5331-01-592-1480
FSC Code: 5331
MPN: M832481139

5331-01-592-0693 (0511PL FN2 PN 4600-045-000)

NIIN: 01-592-0693
In stock
NSN: 5331-01-592-0693
FSC Code: 5331
MPN: 0511PLFN2PN4600045000

5331-01-591-8709 (A-A-59588-2B70/AS568-908)

NIIN: 01-591-8709
In stock
NSN: 5331-01-591-8709
FSC Code: 5331
MPN: AA595882B70AS568908

5331-01-591-7219 (50522900)

NIIN: 01-591-7219
In stock
NSN: 5331-01-591-7219
FSC Code: 5331
MPN: 50522900

5331-01-591-4338 (10024970)

NIIN: 01-591-4338
In stock
NSN: 5331-01-591-4338
FSC Code: 5331
MPN: 10024970

5331-01-591-9117 (M22050-1-129)

NIIN: 01-591-9117
In stock
NSN: 5331-01-591-9117
FSC Code: 5331
MPN: M220501129

5331-01-591-7240 (8C3098)

NIIN: 01-591-7240
In stock
NSN: 5331-01-591-7240
FSC Code: 5331
MPN: 8C3098

5331-01-591-5030 (822125)

NIIN: 01-591-5030
In stock
NSN: 5331-01-591-5030
FSC Code: 5331
MPN: 822125

5331-01-592-4222 (2-129-N70)

NIIN: 01-592-4222
In stock
NSN: 5331-01-592-4222
FSC Code: 5331
MPN: 2129N70

5331-01-592-0094 (1854365C1)

NIIN: 01-592-0094
In stock
NSN: 5331-01-592-0094
FSC Code: 5331
MPN: 1854365C1

5331-01-591-5860 (1128053)

NIIN: 01-591-5860
In stock
NSN: 5331-01-591-5860
FSC Code: 5331
MPN: 1128053

5331-01-592-2572 (A-1633-57)

NIIN: 01-592-2572
In stock
NSN: 5331-01-592-2572
FSC Code: 5331
MPN: A163357

5331-01-591-8700 (A-A-59588-2B80/AS568-217)

NIIN: 01-591-8700
In stock
NSN: 5331-01-591-8700
FSC Code: 5331
MPN: AA595882B80AS568217

5331-01-591-8659 (B10851 REV D ITEM 4)

NIIN: 01-591-8659
In stock
NSN: 5331-01-591-8659
FSC Code: 5331
MPN: B10851REVDITEM4

5331-01-591-8678 (9263K251)

NIIN: 01-591-8678
In stock
NSN: 5331-01-591-8678
FSC Code: 5331
MPN: 9263K251

5331-01-591-8683 (A-A-59588-2B70/AS568-115)

NIIN: 01-591-8683
In stock
NSN: 5331-01-591-8683
FSC Code: 5331
MPN: AA595882B70AS568115

5331-01-591-8233 (4679T291)

NIIN: 01-591-8233
In stock
NSN: 5331-01-591-8233
FSC Code: 5331
MPN: 4679T291

5331-01-591-6975 (50205901)

NIIN: 01-591-6975
In stock
NSN: 5331-01-591-6975
FSC Code: 5331
MPN: 50205901

5331-01-591-5997 (14KP645)

NIIN: 01-591-5997
In stock
NSN: 5331-01-591-5997
FSC Code: 5331
MPN: 14KP645

5331-01-592-0692 (0511PL FN3 PN 1704-999-000)

NIIN: 01-592-0692
In stock
NSN: 5331-01-592-0692
FSC Code: 5331
MPN: 0511PLFN3PN1704999000

5331-01-591-9130 (M22050-1-217)

NIIN: 01-591-9130
In stock
NSN: 5331-01-591-9130
FSC Code: 5331
MPN: M220501217

5331-01-591-3509 (1126059)

NIIN: 01-591-3509
In stock
NSN: 5331-01-591-3509
FSC Code: 5331
MPN: 1126059

5331-01-591-2131 (8LCOCG-B)

NIIN: 01-591-2131
In stock
NSN: 5331-01-591-2131
FSC Code: 5331
MPN: 8LCOCGB

5331-01-592-1342 (10018615)

NIIN: 01-592-1342
In stock
NSN: 5331-01-592-1342
FSC Code: 5331
MPN: 10018615

5331-01-591-8677 (A-A-59588-2B70/AS568-012)

NIIN: 01-591-8677
In stock
NSN: 5331-01-591-8677
FSC Code: 5331
MPN: AA595882B70AS568012

5331-01-591-8312 (0559734)

NIIN: 01-591-8312
In stock
NSN: 5331-01-591-8312
FSC Code: 5331
MPN: 0559734

5331-01-591-5643 (AMC-OR-209-S)

NIIN: 01-591-5643
In stock
NSN: 5331-01-591-5643
FSC Code: 5331
MPN: AMCOR209S

5331-01-592-1711 (95358040)

NIIN: 01-592-1711
In stock
NSN: 5331-01-592-1711
FSC Code: 5331
MPN: 95358040

5331-01-591-8689 (A-A-59588-2B80/AS568-212)

NIIN: 01-591-8689
In stock
NSN: 5331-01-591-8689
FSC Code: 5331
MPN: AA595882B80AS568212

5331-01-591-4639 (MIU801479)

NIIN: 01-591-4639
In stock
NSN: 5331-01-591-4639
FSC Code: 5331
MPN: MIU801479

5331-01-591-1242 (5334054)

NIIN: 01-591-1242
In stock
NSN: 5331-01-591-1242
FSC Code: 5331
MPN: 5334054

5331-01-591-9063 (M22050-1-212)

NIIN: 01-591-9063
In stock
NSN: 5331-01-591-9063
FSC Code: 5331
MPN: M220501212

5331-01-591-8179 (16-09503)

NIIN: 01-591-8179
In stock
NSN: 5331-01-591-8179
FSC Code: 5331
MPN: 1609503

5331-01-591-7732 (00-971886102-697)

NIIN: 01-591-7732
In stock
NSN: 5331-01-591-7732
FSC Code: 5331
MPN: 00971886102697

5331-01-591-7231 (50497300)

NIIN: 01-591-7231
In stock
NSN: 5331-01-591-7231
FSC Code: 5331
MPN: 50497300

5331-01-591-4659 (RG60092)

NIIN: 01-591-4659
In stock
NSN: 5331-01-591-4659
FSC Code: 5331
MPN: RG60092

5331-01-591-4205 (AS-568A-011S50)

NIIN: 01-591-4205
In stock
NSN: 5331-01-591-4205
FSC Code: 5331
MPN: AS568A011S50

5331-01-591-0217 (820311P)

NIIN: 01-591-0217
In stock
NSN: 5331-01-591-0217
FSC Code: 5331
MPN: 820311P

5331-01-591-0209 (820310P)

NIIN: 01-591-0209
In stock
NSN: 5331-01-591-0209
FSC Code: 5331
MPN: 820310P

5331-01-591-8181 (16-09501)

NIIN: 01-591-8181
In stock
NSN: 5331-01-591-8181
FSC Code: 5331
MPN: 1609501

5331-01-591-7733 (00-971886039-680)

NIIN: 01-591-7733
In stock
NSN: 5331-01-591-7733
FSC Code: 5331
MPN: 00971886039680

5331-01-591-1419 (12467492-3)

NIIN: 01-591-1419
In stock
NSN: 5331-01-591-1419
FSC Code: 5331
MPN: 124674923

5331-01-591-8673 (9263K725)

NIIN: 01-591-8673
In stock
NSN: 5331-01-591-8673
FSC Code: 5331
MPN: 9263K725

5331-01-591-8703 (A-A-59588-2B70/AS568-129)

NIIN: 01-591-8703
In stock
NSN: 5331-01-591-8703
FSC Code: 5331
MPN: AA595882B70AS568129

5331-01-591-8236 (4679T321)

NIIN: 01-591-8236
In stock
NSN: 5331-01-591-8236
FSC Code: 5331
MPN: 4679T321

5331-01-591-7943 (R909083785)

NIIN: 01-591-7943
In stock
NSN: 5331-01-591-7943
FSC Code: 5331
MPN: R909083785