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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.

5331-01-387-7442 (925262-8)

NIIN: 01-387-7442
In stock
NSN: 5331-01-387-7442
FSC Code: 5331
MPN: 9252628

5331-01-500-5599 (925064-0)

NIIN: 01-500-5599
In stock
NSN: 5331-01-500-5599
FSC Code: 5331
MPN: 9250640

5331-01-387-5363 (925051-5)

NIIN: 01-387-5363
In stock
NSN: 5331-01-387-5363
FSC Code: 5331
MPN: 9250515

5331-01-371-5124 (925054-9)

NIIN: 01-371-5124
In stock
NSN: 5331-01-371-5124
FSC Code: 5331
MPN: 9250549

5331-01-461-5452 (924N90)

NIIN: 01-461-5452
In stock
NSN: 5331-01-461-5452
FSC Code: 5331
MPN: 924N90

5331-01-396-9638 (92-48)

NIIN: 01-396-9638
In stock
NSN: 5331-01-396-9638
FSC Code: 5331
MPN: 9248

5331-01-457-6519 (92-4061)

NIIN: 01-457-6519
In stock
NSN: 5331-01-457-6519
FSC Code: 5331
MPN: 924061

5331-01-495-5072 (9236-450)

NIIN: 01-495-5072
In stock
NSN: 5331-01-495-5072
FSC Code: 5331
MPN: 9236450

5331-01-484-7448 (9235-450)

NIIN: 01-484-7448
In stock
NSN: 5331-01-484-7448
FSC Code: 5331
MPN: 9235450

5331-01-559-2127 (CD-023-41A-12CP)

NIIN: 01-559-2127
In stock
NSN: 5331-01-559-2127
FSC Code: 5331
MPN: CD02341A12CP

5331-01-354-4161 (92278-0009)

NIIN: 01-354-4161
In stock
NSN: 5331-01-354-4161
FSC Code: 5331
MPN: 922780009

5331-01-472-9613 (9221-3024-624)

NIIN: 01-472-9613
In stock
NSN: 5331-01-472-9613
FSC Code: 5331
MPN: 92213024624

5331-01-408-8488 (9215-777)

NIIN: 01-408-8488
In stock
NSN: 5331-01-408-8488
FSC Code: 5331
MPN: 9215777

5331-01-408-6445 (9214-777)

NIIN: 01-408-6445
In stock
NSN: 5331-01-408-6445
FSC Code: 5331
MPN: 9214777

5331-01-423-6717 (MIL-R-83248/2)

NIIN: 01-423-6717
In stock
NSN: 5331-01-423-6717
FSC Code: 5331
MPN: MILR832482

5331-01-355-9908 (9212ITEM4)

NIIN: 01-355-9908
In stock
NSN: 5331-01-355-9908
FSC Code: 5331
MPN: 9212ITEM4

5331-01-359-1503 (92055-1221)

NIIN: 01-359-1503
In stock
NSN: 5331-01-359-1503
FSC Code: 5331
MPN: 920551221

5331-01-560-1058 (92055-1276)

NIIN: 01-560-1058
In stock
NSN: 5331-01-560-1058
FSC Code: 5331
MPN: 920551276

5331-01-358-0974 (92055-1293)

NIIN: 01-358-0974
In stock
NSN: 5331-01-358-0974
FSC Code: 5331
MPN: 920551293

5331-01-350-2975 (92055-1255)

NIIN: 01-350-2975
In stock
NSN: 5331-01-350-2975
FSC Code: 5331
MPN: 920551255

5331-01-488-7928 (92055-1427)

NIIN: 01-488-7928
In stock
NSN: 5331-01-488-7928
FSC Code: 5331
MPN: 920551427

5331-01-359-4547 (92055-1265)

NIIN: 01-359-4547
In stock
NSN: 5331-01-359-4547
FSC Code: 5331
MPN: 920551265

5331-01-350-2977 (92055-1254)

NIIN: 01-350-2977
In stock
NSN: 5331-01-350-2977
FSC Code: 5331
MPN: 920551254

5331-01-343-8240 (92055-049)

NIIN: 01-343-8240
In stock
NSN: 5331-01-343-8240
FSC Code: 5331
MPN: 92055049

5331-01-560-0737 (92055-1221)

NIIN: 01-560-0737
In stock
NSN: 5331-01-560-0737
FSC Code: 5331
MPN: 920551221

5331-01-560-3606 (92055-1251)

NIIN: 01-560-3606
In stock
NSN: 5331-01-560-3606
FSC Code: 5331
MPN: 920551251

5331-01-560-0730 (92055-049)

NIIN: 01-560-0730
In stock
NSN: 5331-01-560-0730
FSC Code: 5331
MPN: 92055049

5331-01-359-1505 (92055-1002)

NIIN: 01-359-1505
In stock
NSN: 5331-01-359-1505
FSC Code: 5331
MPN: 920551002

5331-01-350-2978 (92055-1141)

NIIN: 01-350-2978
In stock
NSN: 5331-01-350-2978
FSC Code: 5331
MPN: 920551141

5331-01-347-8277 (S33157-222-99)

NIIN: 01-347-8277
In stock
NSN: 5331-01-347-8277
FSC Code: 5331
MPN: S3315722299

5331-01-466-1883 (92007A1498-1)

NIIN: 01-466-1883
In stock
NSN: 5331-01-466-1883
FSC Code: 5331
MPN: 92007A14981

5331-01-466-7422 (92007A1443-4)

NIIN: 01-466-7422
In stock
NSN: 5331-01-466-7422
FSC Code: 5331
MPN: 92007A14434

5331-01-461-6003 (92007A0234-2C)

NIIN: 01-461-6003
In stock
NSN: 5331-01-461-6003
FSC Code: 5331
MPN: 92007A02342C

5331-01-461-6018 (92007A0234-9C)

NIIN: 01-461-6018
In stock
NSN: 5331-01-461-6018
FSC Code: 5331
MPN: 92007A02349C

5331-01-461-6010 (92007A0234-3C)

NIIN: 01-461-6010
In stock
NSN: 5331-01-461-6010
FSC Code: 5331
MPN: 92007A02343C

5331-01-461-6012 (92007A0234-7C)

NIIN: 01-461-6012
In stock
NSN: 5331-01-461-6012
FSC Code: 5331
MPN: 92007A02347C

5331-01-461-6013 (92007A0234-8C)

NIIN: 01-461-6013
In stock
NSN: 5331-01-461-6013
FSC Code: 5331
MPN: 92007A02348C

5331-01-461-6008 (92007A0234-6C)

NIIN: 01-461-6008
In stock
NSN: 5331-01-461-6008
FSC Code: 5331
MPN: 92007A02346C

5331-01-461-6004 (92007A0234-4C)

NIIN: 01-461-6004
In stock
NSN: 5331-01-461-6004
FSC Code: 5331
MPN: 92007A02344C

5331-01-461-6006 (92007A0234-5C)

NIIN: 01-461-6006
In stock
NSN: 5331-01-461-6006
FSC Code: 5331
MPN: 92007A02345C

5331-01-461-6002 (92007A0234-1C)

NIIN: 01-461-6002
In stock
NSN: 5331-01-461-6002
FSC Code: 5331
MPN: 92007A02341C

5331-01-428-7591 (92000-0710)

NIIN: 01-428-7591
In stock
NSN: 5331-01-428-7591
FSC Code: 5331
MPN: 920000710

5331-01-439-5427 (91F-07)

NIIN: 01-439-5427
In stock
NSN: 5331-01-439-5427
FSC Code: 5331
MPN: 91F07

5331-01-525-7632 (91F11)

NIIN: 01-525-7632
In stock
NSN: 5331-01-525-7632
FSC Code: 5331
MPN: 91F11

5331-01-423-2373 (91F9)

NIIN: 01-423-2373
In stock
NSN: 5331-01-423-2373
FSC Code: 5331
MPN: 91F9

5331-20-002-2609 (918506-001)

NIIN: 20-002-2609
In stock
NSN: 5331-20-002-2609
FSC Code: 5331
MPN: 918506001

5331-01-394-1874 (918092-3)

NIIN: 01-394-1874
In stock
NSN: 5331-01-394-1874
FSC Code: 5331
MPN: 9180923

5331-01-350-0464 (9-173)

NIIN: 01-350-0464
In stock
NSN: 5331-01-350-0464
FSC Code: 5331
MPN: 9173