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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.

5331-00-117-4772 (49721-24X1PC22)

NIIN: 00-117-4772
In stock
NSN: 5331-00-117-4772
FSC Code: 5331
MPN: 4972124X1PC22

5331-00-117-4770 (49721-24X1PC18)

NIIN: 00-117-4770
In stock
NSN: 5331-00-117-4770
FSC Code: 5331
MPN: 4972124X1PC18

5331-00-117-4771 (49721-24X1PC19)

NIIN: 00-117-4771
In stock
NSN: 5331-00-117-4771
FSC Code: 5331
MPN: 4972124X1PC19

5331-01-201-2041 (49708-16)

NIIN: 01-201-2041
In stock
NSN: 5331-01-201-2041
FSC Code: 5331
MPN: 4970816

5331-01-443-6332 (16A6903X012)

NIIN: 01-443-6332
In stock
NSN: 5331-01-443-6332
FSC Code: 5331
MPN: 16A6903X012

5331-01-095-3188 (494550-264)

NIIN: 01-095-3188
In stock
NSN: 5331-01-095-3188
FSC Code: 5331
MPN: 494550264

5331-01-095-3189 (494550-287)

NIIN: 01-095-3189
In stock
NSN: 5331-01-095-3189
FSC Code: 5331
MPN: 494550287

5331-01-074-9092 (494550-241)

NIIN: 01-074-9092
In stock
NSN: 5331-01-074-9092
FSC Code: 5331
MPN: 494550241

5331-01-095-5656 (494550-244)

NIIN: 01-095-5656
In stock
NSN: 5331-01-095-5656
FSC Code: 5331
MPN: 494550244

5331-01-073-8544 (494550-248)

NIIN: 01-073-8544
In stock
NSN: 5331-01-073-8544
FSC Code: 5331
MPN: 494550248

5331-00-579-7628 (494150-207)

NIIN: 00-579-7628
In stock
NSN: 5331-00-579-7628
FSC Code: 5331
MPN: 494150207

5331-01-387-6794 (1698692-9)

NIIN: 01-387-6794
In stock
NSN: 5331-01-387-6794
FSC Code: 5331
MPN: 16986929

5331-01-164-5051 (493950-352)

NIIN: 01-164-5051
In stock
NSN: 5331-01-164-5051
FSC Code: 5331
MPN: 493950352

5331-01-569-3154 (169-7487)

NIIN: 01-569-3154
In stock
NSN: 5331-01-569-3154
FSC Code: 5331
MPN: 1697487

5331-00-816-9722 (4930FPC45)

NIIN: 00-816-9722
In stock
NSN: 5331-00-816-9722
FSC Code: 5331
MPN: 4930FPC45

5331-01-547-4935 (1694962C1)

NIIN: 01-547-4935
In stock
NSN: 5331-01-547-4935
FSC Code: 5331
MPN: 1694962C1

5331-01-535-6547 (1694926C1)

NIIN: 01-535-6547
In stock
NSN: 5331-01-535-6547
FSC Code: 5331
MPN: 1694926C1

5331-01-483-5466 (169-4834)

NIIN: 01-483-5466
In stock
NSN: 5331-01-483-5466
FSC Code: 5331
MPN: 1694834

5331-01-562-9291 (1694055C1)

NIIN: 01-562-9291
In stock
NSN: 5331-01-562-9291
FSC Code: 5331
MPN: 1694055C1

5331-00-913-1231 (49-24083)

NIIN: 00-913-1231
In stock
NSN: 5331-00-913-1231
FSC Code: 5331
MPN: 4924083

5331-01-551-5301 (16918-ZY3-000)

NIIN: 01-551-5301
In stock
NSN: 5331-01-551-5301
FSC Code: 5331
MPN: 16918ZY3000

5331-01-560-4714 (16918-ZY3-003)

NIIN: 01-560-4714
In stock
NSN: 5331-01-560-4714
FSC Code: 5331
MPN: 16918ZY3003

5331-01-159-1528 (4916113-6)

NIIN: 01-159-1528
In stock
NSN: 5331-01-159-1528
FSC Code: 5331
MPN: 49161136

5331-01-159-1527 (4916111-0)

NIIN: 01-159-1527
In stock
NSN: 5331-01-159-1527
FSC Code: 5331
MPN: 49161110

5331-00-409-5693 (4912-2948)

NIIN: 00-409-5693
In stock
NSN: 5331-00-409-5693
FSC Code: 5331
MPN: 49122948

5331-01-283-7484 (49-12581)

NIIN: 01-283-7484
In stock
NSN: 5331-01-283-7484
FSC Code: 5331
MPN: 4912581

5331-01-077-4679 (4912-77)

NIIN: 01-077-4679
In stock
NSN: 5331-01-077-4679
FSC Code: 5331
MPN: 491277

5331-01-123-4632 (4911173-5)

NIIN: 01-123-4632
In stock
NSN: 5331-01-123-4632
FSC Code: 5331
MPN: 49111735

5331-12-312-4533 (700429168000)

NIIN: 12-312-4533
In stock
NSN: 5331-12-312-4533
FSC Code: 5331
MPN: 700429168000

5331-01-568-1860 (16-90001)

NIIN: 01-568-1860
In stock
NSN: 5331-01-568-1860
FSC Code: 5331
MPN: 1690001

5331-01-118-4812 (4910448-4)

NIIN: 01-118-4812
In stock
NSN: 5331-01-118-4812
FSC Code: 5331
MPN: 49104484

5331-01-196-6560 (4908-715-8)

NIIN: 01-196-6560
In stock
NSN: 5331-01-196-6560
FSC Code: 5331
MPN: 49087158

5331-01-564-2482 (168850801NR)

NIIN: 01-564-2482
In stock
NSN: 5331-01-564-2482
FSC Code: 5331
MPN: 168850801NR

5331-01-564-2487 (168850901NR)

NIIN: 01-564-2487
In stock
NSN: 5331-01-564-2487
FSC Code: 5331
MPN: 168850901NR

5331-01-564-2481 (168850301NR)

NIIN: 01-564-2481
In stock
NSN: 5331-01-564-2481
FSC Code: 5331
MPN: 168850301NR

5331-00-242-7406 (4906384-5)

NIIN: 00-242-7406
In stock
NSN: 5331-00-242-7406
FSC Code: 5331
MPN: 49063845

5331-01-478-5115 (16881-96750)

NIIN: 01-478-5115
In stock
NSN: 5331-01-478-5115
FSC Code: 5331
MPN: 1688196750

5331-00-431-1344 (4906099-8)

NIIN: 00-431-1344
In stock
NSN: 5331-00-431-1344
FSC Code: 5331
MPN: 49060998

5331-00-298-5880 (4903-983011ALTCPC19)

NIIN: 00-298-5880
In stock
NSN: 5331-00-298-5880
FSC Code: 5331
MPN: 4903983011ALTCPC19

5331-00-136-5069 (4903-3)

NIIN: 00-136-5069
In stock
NSN: 5331-00-136-5069
FSC Code: 5331
MPN: 49033

5331-01-535-5741 (16844TS)

NIIN: 01-535-5741
In stock
NSN: 5331-01-535-5741
FSC Code: 5331
MPN: 16844TS

5331-01-538-0006 (7094-CITEM2)

NIIN: 01-538-0006
In stock
NSN: 5331-01-538-0006
FSC Code: 5331
MPN: 7094CITEM2

5331-01-423-0910 (SAE-AS83461/1)

NIIN: 01-423-0910
In stock
NSN: 5331-01-423-0910
FSC Code: 5331
MPN: SAEAS834611

5331-01-250-5262 (49-0085-NSF)

NIIN: 01-250-5262
In stock
NSN: 5331-01-250-5262
FSC Code: 5331
MPN: 490085NSF

5331-01-141-1830 (490002-0001)

NIIN: 01-141-1830
In stock
NSN: 5331-01-141-1830
FSC Code: 5331
MPN: 4900020001

5331-01-139-4283 (48N-758)

NIIN: 01-139-4283
In stock
NSN: 5331-01-139-4283
FSC Code: 5331
MPN: 48N758

5331-01-138-7110 (48NA-759)

NIIN: 01-138-7110
In stock
NSN: 5331-01-138-7110
FSC Code: 5331
MPN: 48NA759

5331-00-457-4071 (48B7864-2)

NIIN: 00-457-4071
In stock
NSN: 5331-00-457-4071
FSC Code: 5331
MPN: 48B78642