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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.

5331-01-504-4337 (0-10-2-25)

NIIN: 01-504-4337
In stock
NSN: 5331-01-504-4337
FSC Code: 5331
MPN: 010225

5331-01-434-0263 (0-10-2-26)

NIIN: 01-434-0263
In stock
NSN: 5331-01-434-0263
FSC Code: 5331
MPN: 010226

5331-01-359-8771 (MIL-P-25732-37.)

NIIN: 01-359-8771
In stock
NSN: 5331-01-359-8771
FSC Code: 5331
MPN: MILP2573237

5331-01-558-6532 (01032-0085)

NIIN: 01-558-6532
In stock
NSN: 5331-01-558-6532
FSC Code: 5331
MPN: 010320085

5331-01-558-6539 (01032-0085)

NIIN: 01-558-6539
In stock
NSN: 5331-01-558-6539
FSC Code: 5331
MPN: 010320085

5331-01-558-6545 (01032-0085)

NIIN: 01-558-6545
In stock
NSN: 5331-01-558-6545
FSC Code: 5331
MPN: 010320085

5331-01-377-1524 (01-033)

NIIN: 01-377-1524
In stock
NSN: 5331-01-377-1524
FSC Code: 5331
MPN: 01033

5331-01-432-6814 (FIND NO 27 117152080FINDNO27)

NIIN: 01-432-6814
In stock
NSN: 5331-01-432-6814
FSC Code: 5331
MPN: FINDNO27117152080FINDNO27

5331-01-453-2990 (0104030048CP)

NIIN: 01-453-2990
In stock
NSN: 5331-01-453-2990
FSC Code: 5331
MPN: 0104030048CP

5331-01-560-2672 (0104-01-64)

NIIN: 01-560-2672
In stock
NSN: 5331-01-560-2672
FSC Code: 5331
MPN: 01040164

5331-14-389-3715 (01052B8300A50D7)

NIIN: 14-389-3715
In stock
NSN: 5331-14-389-3715
FSC Code: 5331
MPN: 01052B8300A50D7

5331-14-364-0280 (01050C7000A21B6)

NIIN: 14-364-0280
In stock
NSN: 5331-14-364-0280
FSC Code: 5331
MPN: 01050C7000A21B6

5331-01-071-3408 (2-351NA151)

NIIN: 01-071-3408
In stock
NSN: 5331-01-071-3408
FSC Code: 5331
MPN: 2351NA151

5331-01-230-9899 (2-351E540-80)

NIIN: 01-230-9899
In stock
NSN: 5331-01-230-9899
FSC Code: 5331
MPN: 2351E54080

5331-01-005-3208 (2-351V0747-75)

NIIN: 01-005-3208
In stock
NSN: 5331-01-005-3208
FSC Code: 5331
MPN: 2351V074775

5331-01-033-2717 (2-352N304-75)

NIIN: 01-033-2717
In stock
NSN: 5331-01-033-2717
FSC Code: 5331
MPN: 2352N30475

5331-01-007-4909 (2-352C147-7)

NIIN: 01-007-4909
In stock
NSN: 5331-01-007-4909
FSC Code: 5331
MPN: 2352C1477

5331-01-399-8395 (01-061-026)

NIIN: 01-399-8395
In stock
NSN: 5331-01-399-8395
FSC Code: 5331
MPN: 01061026

5331-01-005-3209 (2-352V0747-75)

NIIN: 01-005-3209
In stock
NSN: 5331-01-005-3209
FSC Code: 5331
MPN: 2352V074775

5331-99-757-3004 (100347-9000-047)

NIIN: 99-757-3004
In stock
NSN: 5331-99-757-3004
FSC Code: 5331
MPN: 1003479000047

5331-01-566-0463 (01070-0224)

NIIN: 01-566-0463
In stock
NSN: 5331-01-566-0463
FSC Code: 5331
MPN: 010700224

5331-01-513-6958 (01070-0342)

NIIN: 01-513-6958
In stock
NSN: 5331-01-513-6958
FSC Code: 5331
MPN: 010700342

5331-01-513-6940 (01070-0342)

NIIN: 01-513-6940
In stock
NSN: 5331-01-513-6940
FSC Code: 5331
MPN: 010700342

5331-01-513-6951 (01070-0382)

NIIN: 01-513-6951
In stock
NSN: 5331-01-513-6951
FSC Code: 5331
MPN: 010700382

5331-01-513-6964 (01070-0342)

NIIN: 01-513-6964
In stock
NSN: 5331-01-513-6964
FSC Code: 5331
MPN: 010700342

5331-01-282-5694 (2-353N304-75)

NIIN: 01-282-5694
In stock
NSN: 5331-01-282-5694
FSC Code: 5331
MPN: 2353N30475

5331-01-015-9698 (2-353S604-70)

NIIN: 01-015-9698
In stock
NSN: 5331-01-015-9698
FSC Code: 5331
MPN: 2353S60470

5331-01-006-0310 (2-353V0747-75)

NIIN: 01-006-0310
In stock
NSN: 5331-01-006-0310
FSC Code: 5331
MPN: 2353V074775

5331-00-599-2978 (2354987-502)

NIIN: 00-599-2978
In stock
NSN: 5331-00-599-2978
FSC Code: 5331
MPN: 2354987502

5331-14-226-5686 (10-82X1-78MCN1085)

NIIN: 14-226-5686
In stock
NSN: 5331-14-226-5686
FSC Code: 5331
MPN: 1082X178MCN1085

5331-01-006-0311 (2-354V0747-75)

NIIN: 01-006-0311
In stock
NSN: 5331-01-006-0311
FSC Code: 5331
MPN: 2354V074775

5331-01-114-5192 (2-355)

NIIN: 01-114-5192
In stock
NSN: 5331-01-114-5192
FSC Code: 5331
MPN: 2355

5331-00-297-5330 (2354987-510)

NIIN: 00-297-5330
In stock
NSN: 5331-00-297-5330
FSC Code: 5331
MPN: 2354987510

5331-01-006-0312 (2-355V0747-75)

NIIN: 01-006-0312
In stock
NSN: 5331-01-006-0312
FSC Code: 5331
MPN: 2355V074775

5331-00-298-1297 (235645REVB)

NIIN: 00-298-1297
In stock
NSN: 5331-00-298-1297
FSC Code: 5331
MPN: 235645REVB

5331-00-492-2921 (2-356C147-7)

NIIN: 00-492-2921
In stock
NSN: 5331-00-492-2921
FSC Code: 5331
MPN: 2356C1477

5331-01-006-0313 (2-356V0747-75)

NIIN: 01-006-0313
In stock
NSN: 5331-01-006-0313
FSC Code: 5331
MPN: 2356V074775

5331-01-237-7661 (2-356V894-90)

NIIN: 01-237-7661
In stock
NSN: 5331-01-237-7661
FSC Code: 5331
MPN: 2356V89490

5331-14-411-2570 (01050C70A3U20B6)

NIIN: 14-411-2570
In stock
NSN: 5331-14-411-2570
FSC Code: 5331
MPN: 01050C70A3U20B6

5331-01-487-4158 (011.07.1478)

NIIN: 01-487-4158
In stock
NSN: 5331-01-487-4158
FSC Code: 5331
MPN: 011071478

5331-01-102-9882 (2-357S595-50)

NIIN: 01-102-9882
In stock
NSN: 5331-01-102-9882
FSC Code: 5331
MPN: 2357S59550

5331-01-113-2084 (2-358)

NIIN: 01-113-2084
In stock
NSN: 5331-01-113-2084
FSC Code: 5331
MPN: 2358

5331-01-390-8475 (01-1006)

NIIN: 01-390-8475
In stock
NSN: 5331-01-390-8475
FSC Code: 5331
MPN: 011006

5331-01-006-0314 (2-357V0747-75)

NIIN: 01-006-0314
In stock
NSN: 5331-01-006-0314
FSC Code: 5331
MPN: 2357V074775

5331-01-452-9667 (01101-0345)

NIIN: 01-452-9667
In stock
NSN: 5331-01-452-9667
FSC Code: 5331
MPN: 011010345

5331-01-452-9666 (01101-0345)

NIIN: 01-452-9666
In stock
NSN: 5331-01-452-9666
FSC Code: 5331
MPN: 011010345

5331-01-452-9668 (01101-0345)

NIIN: 01-452-9668
In stock
NSN: 5331-01-452-9668
FSC Code: 5331
MPN: 011010345

5331-01-268-5779 (2-358-N674-70)

NIIN: 01-268-5779
In stock
NSN: 5331-01-268-5779
FSC Code: 5331
MPN: 2358N67470