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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.

5331-00-422-0349 (2-219)

NIIN: 00-422-0349
In stock
NSN: 5331-00-422-0349
FSC Code: 5331
MPN: 2219

5331-00-531-3718 (2-219)

NIIN: 00-531-3718
In stock
NSN: 5331-00-531-3718
FSC Code: 5331
MPN: 2219

5331-00-166-8406 (2-219)

NIIN: 00-166-8406
In stock
NSN: 5331-00-166-8406
FSC Code: 5331
MPN: 2219

5331-00-640-9453 (2-219)

NIIN: 00-640-9453
In stock
NSN: 5331-00-640-9453
FSC Code: 5331
MPN: 2219

5331-00-238-4708 (2-219)

NIIN: 00-238-4708
In stock
NSN: 5331-00-238-4708
FSC Code: 5331
MPN: 2219

5331-01-475-3917 (221000700003)

NIIN: 01-475-3917
In stock
NSN: 5331-01-475-3917
FSC Code: 5331
MPN: 221000700003

5331-01-420-2075 (PC 13 503608048014PC13)

NIIN: 01-420-2075
In stock
NSN: 5331-01-420-2075
FSC Code: 5331
MPN: PC13503608048014PC13

5331-01-487-3092 (PC 4 513112054002PC4)

NIIN: 01-487-3092
In stock
NSN: 5331-01-487-3092
FSC Code: 5331
MPN: PC4513112054002PC4

5331-00-032-4022 (2-219L1223-60)

NIIN: 00-032-4022
In stock
NSN: 5331-00-032-4022
FSC Code: 5331
MPN: 2219L122360

5331-00-435-0443 (2-219E515-8)

NIIN: 00-435-0443
In stock
NSN: 5331-00-435-0443
FSC Code: 5331
MPN: 2219E5158

5331-01-040-1794 (2-219C1124-70)

NIIN: 01-040-1794
In stock
NSN: 5331-01-040-1794
FSC Code: 5331
MPN: 2219C112470

5331-00-913-6144 (2-219N702-90)

NIIN: 00-913-6144
In stock
NSN: 5331-00-913-6144
FSC Code: 5331
MPN: 2219N70290

5331-00-013-7784 (2-219N674-70)

NIIN: 00-013-7784
In stock
NSN: 5331-00-013-7784
FSC Code: 5331
MPN: 2219N67470

5331-00-925-4778 (2-219S1032-70)

NIIN: 00-925-4778
In stock
NSN: 5331-00-925-4778
FSC Code: 5331
MPN: 2219S103270

5331-00-265-1079 (221-C-69)

NIIN: 00-265-1079
In stock
NSN: 5331-00-265-1079
FSC Code: 5331
MPN: 221C69

5331-00-765-2081 (2-220)

NIIN: 00-765-2081
In stock
NSN: 5331-00-765-2081
FSC Code: 5331
MPN: 2220

5331-01-200-6297 (2-220)

NIIN: 01-200-6297
In stock
NSN: 5331-01-200-6297
FSC Code: 5331
MPN: 2220

5331-00-844-3222 (22-202)

NIIN: 00-844-3222
In stock
NSN: 5331-00-844-3222
FSC Code: 5331
MPN: 22202

5331-01-215-9645 (22205A)

NIIN: 01-215-9645
In stock
NSN: 5331-01-215-9645
FSC Code: 5331
MPN: 22205A

5331-00-844-3225 (22-207)

NIIN: 00-844-3225
In stock
NSN: 5331-00-844-3225
FSC Code: 5331
MPN: 22207

5331-01-305-9401 (2220-8046-0)

NIIN: 01-305-9401
In stock
NSN: 5331-01-305-9401
FSC Code: 5331
MPN: 222080460

5331-00-942-4442 (2-220E540-80)

NIIN: 00-942-4442
In stock
NSN: 5331-00-942-4442
FSC Code: 5331
MPN: 2220E54080

5331-00-272-3556 (2-220L449-6)

NIIN: 00-272-3556
In stock
NSN: 5331-00-272-3556
FSC Code: 5331
MPN: 2220L4496

5331-00-156-2961 (2-220N497-70)

NIIN: 00-156-2961
In stock
NSN: 5331-00-156-2961
FSC Code: 5331
MPN: 2220N49770

5331-01-237-7499 (2-220L1223-60)

NIIN: 01-237-7499
In stock
NSN: 5331-01-237-7499
FSC Code: 5331
MPN: 2220L122360

5331-00-907-5168 (2-220N380-8)

NIIN: 00-907-5168
In stock
NSN: 5331-00-907-5168
FSC Code: 5331
MPN: 2220N3808

5331-00-291-7285 (2-220N219-70)

NIIN: 00-291-7285
In stock
NSN: 5331-00-291-7285
FSC Code: 5331
MPN: 2220N21970

5331-01-021-5370 (2-220PS-1-30-5)

NIIN: 01-021-5370
In stock
NSN: 5331-01-021-5370
FSC Code: 5331
MPN: 2220PS1305

5331-00-197-8981 (2-221)

NIIN: 00-197-8981
In stock
NSN: 5331-00-197-8981
FSC Code: 5331
MPN: 2221

5331-12-166-5744 (HERST-DATEN UNBEKANNT PRIMAEREHERSTDATENUNBEKANNT)

NIIN: 12-166-5744
In stock
NSN: 5331-12-166-5744
FSC Code: 5331
MPN: HERSTDATENUNBEKANNTPRIMAEREHERSTDATENUNBEKANNT

5331-00-044-5275 (2-220N683-70)

NIIN: 00-044-5275
In stock
NSN: 5331-00-044-5275
FSC Code: 5331
MPN: 2220N68370

5331-00-593-1193 (2-220N951-75)

NIIN: 00-593-1193
In stock
NSN: 5331-00-593-1193
FSC Code: 5331
MPN: 2220N95175

5331-00-948-6062 (2-220S1032-70)

NIIN: 00-948-6062
In stock
NSN: 5331-00-948-6062
FSC Code: 5331
MPN: 2220S103270

5331-00-491-1613 (2-220S613-6)

NIIN: 00-491-1613
In stock
NSN: 5331-00-491-1613
FSC Code: 5331
MPN: 2220S6136

5331-00-803-5957 (2-221)

NIIN: 00-803-5957
In stock
NSN: 5331-00-803-5957
FSC Code: 5331
MPN: 2221

5331-00-826-2976 (2-221)

NIIN: 00-826-2976
In stock
NSN: 5331-00-826-2976
FSC Code: 5331
MPN: 2221

5331-01-356-7219 (447144018909)

NIIN: 01-356-7219
In stock
NSN: 5331-01-356-7219
FSC Code: 5331
MPN: 447144018909

5331-01-520-6192 (5331PL0861541)

NIIN: 01-520-6192
In stock
NSN: 5331-01-520-6192
FSC Code: 5331
MPN: 5331PL0861541

5331-01-520-4916 (5331PL0861512)

NIIN: 01-520-4916
In stock
NSN: 5331-01-520-4916
FSC Code: 5331
MPN: 5331PL0861512

5331-01-068-8486 (2-221C147-7)

NIIN: 01-068-8486
In stock
NSN: 5331-01-068-8486
FSC Code: 5331
MPN: 2221C1477

5331-12-170-4723 (WZNR2-6971WNR656)

NIIN: 12-170-4723
In stock
NSN: 5331-12-170-4723
FSC Code: 5331
MPN: WZNR26971WNR656

5331-00-811-9015 (2-221E688-70)

NIIN: 00-811-9015
In stock
NSN: 5331-00-811-9015
FSC Code: 5331
MPN: 2221E68870

5331-00-185-9375 (2-221L608-60)

NIIN: 00-185-9375
In stock
NSN: 5331-00-185-9375
FSC Code: 5331
MPN: 2221L60860

5331-01-105-1888 (2-221N525-60)

NIIN: 01-105-1888
In stock
NSN: 5331-01-105-1888
FSC Code: 5331
MPN: 2221N52560

5331-00-052-6700 (2-221C220-6)

NIIN: 00-052-6700
In stock
NSN: 5331-00-052-6700
FSC Code: 5331
MPN: 2221C2206

5331-12-170-4724 (WZNR2-4324WNR656)

NIIN: 12-170-4724
In stock
NSN: 5331-12-170-4724
FSC Code: 5331
MPN: WZNR24324WNR656

5331-00-982-2491 (2-221S613-60)

NIIN: 00-982-2491
In stock
NSN: 5331-00-982-2491
FSC Code: 5331
MPN: 2221S61360

5331-01-155-3409 (2-222)

NIIN: 01-155-3409
In stock
NSN: 5331-01-155-3409
FSC Code: 5331
MPN: 2222