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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.

5331-99-611-8812 (AMBEU61513)

NIIN: 99-611-8812
In stock
NSN: 5331-99-611-8812
FSC Code: 5331
MPN: AMBEU61513

5331-01-477-9888 (AM20410733)

NIIN: 01-477-9888
In stock
NSN: 5331-01-477-9888
FSC Code: 5331
MPN: AM20410733

5331-01-447-4136 (AM1290P625)

NIIN: 01-447-4136
In stock
NSN: 5331-01-447-4136
FSC Code: 5331
MPN: AM1290P625

5331-01-497-6473 (ASC1573081)

NIIN: 01-497-6473
In stock
NSN: 5331-01-497-6473
FSC Code: 5331
MPN: ASC1573081

5331-01-371-5082 (AM1363000P407)

NIIN: 01-371-5082
In stock
NSN: 5331-01-371-5082
FSC Code: 5331
MPN: AM1363000P407

5331-01-497-6475 (ASC1573093)

NIIN: 01-497-6475
In stock
NSN: 5331-01-497-6475
FSC Code: 5331
MPN: ASC1573093

5331-01-424-1823 (A-LSNB2502-0600-10)

NIIN: 01-424-1823
In stock
NSN: 5331-01-424-1823
FSC Code: 5331
MPN: ALSNB2502060010

5331-01-424-1824 (A-LSNB2502-0800-10)

NIIN: 01-424-1824
In stock
NSN: 5331-01-424-1824
FSC Code: 5331
MPN: ALSNB2502080010

5331-01-472-3978 (AL200-401-AL)

NIIN: 01-472-3978
In stock
NSN: 5331-01-472-3978
FSC Code: 5331
MPN: AL200401AL

5331-00-297-5386 (NC275B)

NIIN: 00-297-5386
In stock
NSN: 5331-00-297-5386
FSC Code: 5331
MPN: NC275B

5331-01-433-0272 (AKMQ0042BXE)

NIIN: 01-433-0272
In stock
NSN: 5331-01-433-0272
FSC Code: 5331
MPN: AKMQ0042BXE

5331-01-433-0251 (AKMQ0042BXE)

NIIN: 01-433-0251
In stock
NSN: 5331-01-433-0251
FSC Code: 5331
MPN: AKMQ0042BXE

5331-14-435-8305 (AJ64-33)

NIIN: 14-435-8305
In stock
NSN: 5331-14-435-8305
FSC Code: 5331
MPN: AJ6433

5331-01-433-8587 (AIR-SERVOMOTOR)

NIIN: 01-433-8587
In stock
NSN: 5331-01-433-8587
FSC Code: 5331
MPN: AIRSERVOMOTOR

5331-01-283-4143 (NB-25025S-HH-325)

NIIN: 01-283-4143
In stock
NSN: 5331-01-283-4143
FSC Code: 5331
MPN: NB25025SHH325

5331-01-221-9655 (NB-2502-0900-10)

NIIN: 01-221-9655
In stock
NSN: 5331-01-221-9655
FSC Code: 5331
MPN: NB2502090010

5331-01-433-8590 (AIR-SERVOMOTOR)

NIIN: 01-433-8590
In stock
NSN: 5331-01-433-8590
FSC Code: 5331
MPN: AIRSERVOMOTOR

5331-01-310-5196 (NB-0101-0900-10)

NIIN: 01-310-5196
In stock
NSN: 5331-01-310-5196
FSC Code: 5331
MPN: NB0101090010

5331-01-246-2544 (NB0102H-0800-10)

NIIN: 01-246-2544
In stock
NSN: 5331-01-246-2544
FSC Code: 5331
MPN: NB0102H080010

5331-01-421-0447 (AH-6613-AM)

NIIN: 01-421-0447
In stock
NSN: 5331-01-421-0447
FSC Code: 5331
MPN: AH6613AM

5331-00-802-9462 (NAS617-28)

NIIN: 00-802-9462
In stock
NSN: 5331-00-802-9462
FSC Code: 5331
MPN: NAS61728

5331-01-469-9449 (AH5700DE)

NIIN: 01-469-9449
In stock
NSN: 5331-01-469-9449
FSC Code: 5331
MPN: AH5700DE

5331-01-562-7345 (AH5700AH)

NIIN: 01-562-7345
In stock
NSN: 5331-01-562-7345
FSC Code: 5331
MPN: AH5700AH

5331-01-449-5769 (AH2025KB)

NIIN: 01-449-5769
In stock
NSN: 5331-01-449-5769
FSC Code: 5331
MPN: AH2025KB

5331-01-421-0445 (AH-2025-UF)

NIIN: 01-421-0445
In stock
NSN: 5331-01-421-0445
FSC Code: 5331
MPN: AH2025UF

5331-01-536-3332 (LL-H58-4144)

NIIN: 01-536-3332
In stock
NSN: 5331-01-536-3332
FSC Code: 5331
MPN: LLH584144

5331-01-553-3688 (AH146562)

NIIN: 01-553-3688
In stock
NSN: 5331-01-553-3688
FSC Code: 5331
MPN: AH146562

5331-01-553-3689 (AH146558)

NIIN: 01-553-3689
In stock
NSN: 5331-01-553-3689
FSC Code: 5331
MPN: AH146558

5331-01-555-7153 (AH-100-84-SK)

NIIN: 01-555-7153
In stock
NSN: 5331-01-555-7153
FSC Code: 5331
MPN: AH10084SK

5331-20-004-0770 (AG300130)

NIIN: 20-004-0770
In stock
NSN: 5331-20-004-0770
FSC Code: 5331
MPN: AG300130

5331-20-004-0774 (AG300132)

NIIN: 20-004-0774
In stock
NSN: 5331-20-004-0774
FSC Code: 5331
MPN: AG300132

5331-01-390-6762 (AF-OR)

NIIN: 01-390-6762
In stock
NSN: 5331-01-390-6762
FSC Code: 5331
MPN: AFOR

5331-01-450-8459 (AFS-001-6X2)

NIIN: 01-450-8459
In stock
NSN: 5331-01-450-8459
FSC Code: 5331
MPN: AFS0016X2

5331-01-551-6723 (AF968MP011044)

NIIN: 01-551-6723
In stock
NSN: 5331-01-551-6723
FSC Code: 5331
MPN: AF968MP011044

5331-01-551-6724 (AF968MP011041)

NIIN: 01-551-6724
In stock
NSN: 5331-01-551-6724
FSC Code: 5331
MPN: AF968MP011041

5331-01-287-4828 (NAS1612-12)

NIIN: 01-287-4828
In stock
NSN: 5331-01-287-4828
FSC Code: 5331
MPN: NAS161212

5331-01-287-4829 (NAS1612-4)

NIIN: 01-287-4829
In stock
NSN: 5331-01-287-4829
FSC Code: 5331
MPN: NAS16124

5331-01-244-5286 (NAS1612-28)

NIIN: 01-244-5286
In stock
NSN: 5331-01-244-5286
FSC Code: 5331
MPN: NAS161228

5331-01-071-8796 (NAS1611-341)

NIIN: 01-071-8796
In stock
NSN: 5331-01-071-8796
FSC Code: 5331
MPN: NAS1611341

5331-01-101-8165 (NAS1611-430)

NIIN: 01-101-8165
In stock
NSN: 5331-01-101-8165
FSC Code: 5331
MPN: NAS1611430

5331-01-033-1605 (NAS1611-327)

NIIN: 01-033-1605
In stock
NSN: 5331-01-033-1605
FSC Code: 5331
MPN: NAS1611327

5331-01-121-8533 (NAS1611-270)

NIIN: 01-121-8533
In stock
NSN: 5331-01-121-8533
FSC Code: 5331
MPN: NAS1611270

5331-01-057-0418 (NAS1611-250)

NIIN: 01-057-0418
In stock
NSN: 5331-01-057-0418
FSC Code: 5331
MPN: NAS1611250

5331-01-094-6075 (NAS1611-255)

NIIN: 01-094-6075
In stock
NSN: 5331-01-094-6075
FSC Code: 5331
MPN: NAS1611255

5331-01-052-1806 (NAS1611-222)

NIIN: 01-052-1806
In stock
NSN: 5331-01-052-1806
FSC Code: 5331
MPN: NAS1611222

5331-01-057-0423 (NAS1611-251)

NIIN: 01-057-0423
In stock
NSN: 5331-01-057-0423
FSC Code: 5331
MPN: NAS1611251

5331-00-838-5067 (NAS1611-242)

NIIN: 00-838-5067
In stock
NSN: 5331-00-838-5067
FSC Code: 5331
MPN: NAS1611242

5331-00-256-7391 (NAS1611-239)

NIIN: 00-256-7391
In stock
NSN: 5331-00-256-7391
FSC Code: 5331
MPN: NAS1611239