Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-01-602-1591 (900107)

NIIN: 01-602-1591
In stock
NSN: 5331-01-602-1591
FSC Code: 5331
MPN: 900107

5331-01-602-0711 (590803)

NIIN: 01-602-0711
In stock
NSN: 5331-01-602-0711
FSC Code: 5331
MPN: 590803

5331-01-602-0719 (156385)

NIIN: 01-602-0719
In stock
NSN: 5331-01-602-0719
FSC Code: 5331
MPN: 156385

5331-01-602-0508 (700-334-433)

NIIN: 01-602-0508
In stock
NSN: 5331-01-602-0508
FSC Code: 5331
MPN: 700334433

5331-01-602-0421 (123-139-5)

NIIN: 01-602-0421
In stock
NSN: 5331-01-602-0421
FSC Code: 5331
MPN: 1231395

5331-01-602-0465 (U-90165 REV 3 ITEM 9)

NIIN: 01-602-0465
In stock
NSN: 5331-01-602-0465
FSC Code: 5331
MPN: U90165REV3ITEM9

5331-01-602-0225 (U-90166 REV 3 ITEM 9)

NIIN: 01-602-0225
In stock
NSN: 5331-01-602-0225
FSC Code: 5331
MPN: U90166REV3ITEM9

5331-01-601-8626 (237968-0001 ITEM 65)

NIIN: 01-601-8626
In stock
NSN: 5331-01-601-8626
FSC Code: 5331
MPN: 2379680001ITEM65

5331-01-601-8443 (3 355 8 19 100 01)

NIIN: 01-601-8443
In stock
NSN: 5331-01-601-8443
FSC Code: 5331
MPN: 335581910001

5331-01-601-7107 (E1157-2-234)

NIIN: 01-601-7107
In stock
NSN: 5331-01-601-7107
FSC Code: 5331
MPN: E11572234

5331-01-601-6890 (820348)

NIIN: 01-601-6890
In stock
NSN: 5331-01-601-6890
FSC Code: 5331
MPN: 820348

5331-01-602-1035 (10-832)

NIIN: 01-602-1035
In stock
NSN: 5331-01-602-1035
FSC Code: 5331
MPN: 10832

5331-01-602-0509 (700-034-433)

NIIN: 01-602-0509
In stock
NSN: 5331-01-602-0509
FSC Code: 5331
MPN: 700034433

5331-01-602-0299 (F436044)

NIIN: 01-602-0299
In stock
NSN: 5331-01-602-0299
FSC Code: 5331
MPN: F436044

5331-01-602-0296 (028-13852-000)

NIIN: 01-602-0296
In stock
NSN: 5331-01-602-0296
FSC Code: 5331
MPN: 02813852000

5331-01-601-9040 (24341-000450)

NIIN: 01-601-9040
In stock
NSN: 5331-01-601-9040
FSC Code: 5331
MPN: 24341000450

5331-01-601-8931 (A5419970545)

NIIN: 01-601-8931
In stock
NSN: 5331-01-601-8931
FSC Code: 5331
MPN: A5419970545

5331-01-601-8474 (10017006ITEM11)

NIIN: 01-601-8474
In stock
NSN: 5331-01-601-8474
FSC Code: 5331
MPN: 10017006ITEM11

5331-01-601-7858 (652325368)

NIIN: 01-601-7858
In stock
NSN: 5331-01-601-7858
FSC Code: 5331
MPN: 652325368

5331-01-601-5965 (0805246-163)

NIIN: 01-601-5965
In stock
NSN: 5331-01-601-5965
FSC Code: 5331
MPN: 0805246163

5331-01-601-5544 (241-005-0025)

NIIN: 01-601-5544
In stock
NSN: 5331-01-601-5544
FSC Code: 5331
MPN: 2410050025

5331-01-601-4558 (NAS1611-025A)

NIIN: 01-601-4558
In stock
NSN: 5331-01-601-4558
FSC Code: 5331
MPN: NAS1611025A

5331-01-601-3366 (05157-010)

NIIN: 01-601-3366
In stock
NSN: 5331-01-601-3366
FSC Code: 5331
MPN: 05157010

5331-01-601-3365 (11288-049)

NIIN: 01-601-3365
In stock
NSN: 5331-01-601-3365
FSC Code: 5331
MPN: 11288049

5331-01-602-0692 (102 026 32)

NIIN: 01-602-0692
In stock
NSN: 5331-01-602-0692
FSC Code: 5331
MPN: 10202632

5331-01-602-0638 (DDE A5419970545)

NIIN: 01-602-0638
In stock
NSN: 5331-01-602-0638
FSC Code: 5331
MPN: DDEA5419970545

5331-01-602-0521 (0391-00-349-T)

NIIN: 01-602-0521
In stock
NSN: 5331-01-602-0521
FSC Code: 5331
MPN: 039100349T

5331-01-602-0293 (028-13963-000)

NIIN: 01-602-0293
In stock
NSN: 5331-01-602-0293
FSC Code: 5331
MPN: 02813963000

5331-01-602-0266 (028-13863-000)

NIIN: 01-602-0266
In stock
NSN: 5331-01-602-0266
FSC Code: 5331
MPN: 02813863000

5331-01-602-0227 (U-90166 REV 3 ITEM 8)

NIIN: 01-602-0227
In stock
NSN: 5331-01-602-0227
FSC Code: 5331
MPN: U90166REV3ITEM8

5331-01-601-8561 (310803)

NIIN: 01-601-8561
In stock
NSN: 5331-01-601-8561
FSC Code: 5331
MPN: 310803

5331-01-601-7085 (E0540-3-920)

NIIN: 01-601-7085
In stock
NSN: 5331-01-601-7085
FSC Code: 5331
MPN: E05403920

5331-01-601-0908 (2-178N951-75)

NIIN: 01-601-0908
In stock
NSN: 5331-01-601-0908
FSC Code: 5331
MPN: 2178N95175

5331-01-601-9839 (9685)

NIIN: 01-601-9839
In stock
NSN: 5331-01-601-9839
FSC Code: 5331
MPN: 9685

5331-01-601-9089 (0540073)

NIIN: 01-601-9089
In stock
NSN: 5331-01-601-9089
FSC Code: 5331
MPN: 0540073

5331-01-601-2711 (0200-001-237)

NIIN: 01-601-2711
In stock
NSN: 5331-01-601-2711
FSC Code: 5331
MPN: 0200001237

5331-01-601-0885 (2G3932)

NIIN: 01-601-0885
In stock
NSN: 5331-01-601-0885
FSC Code: 5331
MPN: 2G3932

5331-01-601-8375 (AN-2.0-125-SS ITEM 4)

NIIN: 01-601-8375
In stock
NSN: 5331-01-601-8375
FSC Code: 5331
MPN: AN20125SSITEM4

5331-01-601-5546 (241-005-0028)

NIIN: 01-601-5546
In stock
NSN: 5331-01-601-5546
FSC Code: 5331
MPN: 2410050028

5331-01-601-4778 (M740-003-006)

NIIN: 01-601-4778
In stock
NSN: 5331-01-601-4778
FSC Code: 5331
MPN: M740003006

5331-01-601-4585 (556-028-00)

NIIN: 01-601-4585
In stock
NSN: 5331-01-601-4585
FSC Code: 5331
MPN: 55602800

5331-01-601-0893 (ASTMD20000 M5BG710A14B14E01)

NIIN: 01-601-0893
In stock
NSN: 5331-01-601-0893
FSC Code: 5331
MPN: ASTMD20000M5BG710A14B14E01

5331-01-600-8556 (D-000-367-M005)

NIIN: 01-600-8556
In stock
NSN: 5331-01-600-8556
FSC Code: 5331
MPN: D000367M005

5331-01-601-8622 (237854-0001 ITEM 62)

NIIN: 01-601-8622
In stock
NSN: 5331-01-601-8622
FSC Code: 5331
MPN: 2378540001ITEM62

5331-01-601-7732 (DC27370-00)

NIIN: 01-601-7732
In stock
NSN: 5331-01-601-7732
FSC Code: 5331
MPN: DC2737000

5331-01-601-6525 (0324678)

NIIN: 01-601-6525
In stock
NSN: 5331-01-601-6525
FSC Code: 5331
MPN: 0324678

5331-01-601-4997 (2-120C3002-70B)

NIIN: 01-601-4997
In stock
NSN: 5331-01-601-4997
FSC Code: 5331
MPN: 2120C300270B

5331-01-601-4786 (D707-006-010)

NIIN: 01-601-4786
In stock
NSN: 5331-01-601-4786
FSC Code: 5331
MPN: D707006010