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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.

5331-00-168-5691 (6-0R-3)

NIIN: 00-168-5691
In stock
NSN: 5331-00-168-5691
FSC Code: 5331
MPN: 60R3

5331-01-025-0825 (60K-40616)

NIIN: 01-025-0825
In stock
NSN: 5331-01-025-0825
FSC Code: 5331
MPN: 60K40616

5331-01-312-5185 (60K40528)

NIIN: 01-312-5185
In stock
NSN: 5331-01-312-5185
FSC Code: 5331
MPN: 60K40528

5331-01-461-8141 (8.0-691F-AB)

NIIN: 01-461-8141
In stock
NSN: 5331-01-461-8141
FSC Code: 5331
MPN: 80691FAB

5331-00-764-5305 (60K40608)

NIIN: 00-764-5305
In stock
NSN: 5331-00-764-5305
FSC Code: 5331
MPN: 60K40608

5331-00-764-5301 (60K40700)

NIIN: 00-764-5301
In stock
NSN: 5331-00-764-5301
FSC Code: 5331
MPN: 60K40700

5331-01-318-6126 (60K40520)

NIIN: 01-318-6126
In stock
NSN: 5331-01-318-6126
FSC Code: 5331
MPN: 60K40520

5331-01-280-3624 (60K-40512)

NIIN: 01-280-3624
In stock
NSN: 5331-01-280-3624
FSC Code: 5331
MPN: 60K40512

5331-01-181-2431 (60K-40420)

NIIN: 01-181-2431
In stock
NSN: 5331-01-181-2431
FSC Code: 5331
MPN: 60K40420

5331-01-539-4329 (2-378-L1223-60)

NIIN: 01-539-4329
In stock
NSN: 5331-01-539-4329
FSC Code: 5331
MPN: 2378L122360

5331-01-020-0948 (60K40106)

NIIN: 01-020-0948
In stock
NSN: 5331-01-020-0948
FSC Code: 5331
MPN: 60K40106

5331-01-162-3719 (60K40224)

NIIN: 01-162-3719
In stock
NSN: 5331-01-162-3719
FSC Code: 5331
MPN: 60K40224

5331-01-304-2364 (60K-40124)

NIIN: 01-304-2364
In stock
NSN: 5331-01-304-2364
FSC Code: 5331
MPN: 60K40124

5331-01-572-0251 (PRP568-379-4900-70)

NIIN: 01-572-0251
In stock
NSN: 5331-01-572-0251
FSC Code: 5331
MPN: PRP568379490070

5331-01-181-2434 (60K-40112)

NIIN: 01-181-2434
In stock
NSN: 5331-01-181-2434
FSC Code: 5331
MPN: 60K40112

5331-01-280-3625 (60K-40212)

NIIN: 01-280-3625
In stock
NSN: 5331-01-280-3625
FSC Code: 5331
MPN: 60K40212

5331-01-181-2435 (60K-30022)

NIIN: 01-181-2435
In stock
NSN: 5331-01-181-2435
FSC Code: 5331
MPN: 60K30022

5331-01-118-8805 (60K-40024)

NIIN: 01-118-8805
In stock
NSN: 5331-01-118-8805
FSC Code: 5331
MPN: 60K40024

5331-01-304-2365 (60K-30106)

NIIN: 01-304-2365
In stock
NSN: 5331-01-304-2365
FSC Code: 5331
MPN: 60K30106

5331-01-458-9647 (ORAR00237-N9038)

NIIN: 01-458-9647
In stock
NSN: 5331-01-458-9647
FSC Code: 5331
MPN: ORAR00237N9038

5331-01-245-2476 (60K40108)

NIIN: 01-245-2476
In stock
NSN: 5331-01-245-2476
FSC Code: 5331
MPN: 60K40108

5331-01-260-5898 (60K020104)

NIIN: 01-260-5898
In stock
NSN: 5331-01-260-5898
FSC Code: 5331
MPN: 60K020104

5331-00-198-6168 (60FSN35G)

NIIN: 00-198-6168
In stock
NSN: 5331-00-198-6168
FSC Code: 5331
MPN: 60FSN35G

5331-01-277-0180 (60K040308)

NIIN: 01-277-0180
In stock
NSN: 5331-01-277-0180
FSC Code: 5331
MPN: 60K040308

5331-01-439-1983 (2-377-N674-70)

NIIN: 01-439-1983
In stock
NSN: 5331-01-439-1983
FSC Code: 5331
MPN: 2377N67470

5331-01-389-1486 (2-377E515-80)

NIIN: 01-389-1486
In stock
NSN: 5331-01-389-1486
FSC Code: 5331
MPN: 2377E51580

5331-01-240-5037 (60K020102)

NIIN: 01-240-5037
In stock
NSN: 5331-01-240-5037
FSC Code: 5331
MPN: 60K020102

5331-01-260-5899 (60K020012)

NIIN: 01-260-5899
In stock
NSN: 5331-01-260-5899
FSC Code: 5331
MPN: 60K020012

5331-01-236-9190 (60K/30016)

NIIN: 01-236-9190
In stock
NSN: 5331-01-236-9190
FSC Code: 5331
MPN: 60K30016

5331-01-257-5014 (60K020018)

NIIN: 01-257-5014
In stock
NSN: 5331-01-257-5014
FSC Code: 5331
MPN: 60K020018

5331-01-263-7831 (60H4)

NIIN: 01-263-7831
In stock
NSN: 5331-01-263-7831
FSC Code: 5331
MPN: 60H4

5331-01-350-0461 (237-6012)

NIIN: 01-350-0461
In stock
NSN: 5331-01-350-0461
FSC Code: 5331
MPN: 2376012

5331-01-349-4863 (237-6006)

NIIN: 01-349-4863
In stock
NSN: 5331-01-349-4863
FSC Code: 5331
MPN: 2376006

5331-01-349-4868 (237-6004)

NIIN: 01-349-4868
In stock
NSN: 5331-01-349-4868
FSC Code: 5331
MPN: 2376004

5331-01-410-8433 (23750-352)

NIIN: 01-410-8433
In stock
NSN: 5331-01-410-8433
FSC Code: 5331
MPN: 23750352

5331-00-973-8868 (60C168)

NIIN: 00-973-8868
In stock
NSN: 5331-00-973-8868
FSC Code: 5331
MPN: 60C168

5331-00-888-5083 (60C160A)

NIIN: 00-888-5083
In stock
NSN: 5331-00-888-5083
FSC Code: 5331
MPN: 60C160A

5331-00-973-8871 (60C152C)

NIIN: 00-973-8871
In stock
NSN: 5331-00-973-8871
FSC Code: 5331
MPN: 60C152C

5331-00-973-8874 (60C137A)

NIIN: 00-973-8874
In stock
NSN: 5331-00-973-8874
FSC Code: 5331
MPN: 60C137A

5331-00-973-8875 (60C132)

NIIN: 00-973-8875
In stock
NSN: 5331-00-973-8875
FSC Code: 5331
MPN: 60C132

5331-01-435-2479 (SAE-AS83461/1)

NIIN: 01-435-2479
In stock
NSN: 5331-01-435-2479
FSC Code: 5331
MPN: SAEAS834611

5331-01-474-0650 (2-374)

NIIN: 01-474-0650
In stock
NSN: 5331-01-474-0650
FSC Code: 5331
MPN: 2374

5331-00-111-0790 (60C151)

NIIN: 00-111-0790
In stock
NSN: 5331-00-111-0790
FSC Code: 5331
MPN: 60C151

5331-01-129-8895 (60C128)

NIIN: 01-129-8895
In stock
NSN: 5331-01-129-8895
FSC Code: 5331
MPN: 60C128

5331-00-113-8484 (60C115)

NIIN: 00-113-8484
In stock
NSN: 5331-00-113-8484
FSC Code: 5331
MPN: 60C115

5331-01-129-8894 (60C122)

NIIN: 01-129-8894
In stock
NSN: 5331-01-129-8894
FSC Code: 5331
MPN: 60C122

5331-01-524-0288 (4400571-3460)

NIIN: 01-524-0288
In stock
NSN: 5331-01-524-0288
FSC Code: 5331
MPN: 44005713460

5331-01-524-0251 (4400571-3330)

NIIN: 01-524-0251
In stock
NSN: 5331-01-524-0251
FSC Code: 5331
MPN: 44005713330