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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.

5331-01-607-3039 (4740154)

NIIN: 01-607-3039
In stock
NSN: 5331-01-607-3039
FSC Code: 5331
MPN: 4740154

5331-01-608-1686 (87-50513)

NIIN: 01-608-1686
In stock
NSN: 5331-01-608-1686
FSC Code: 5331
MPN: 8750513

5331-01-607-8455 (605-052-004)

NIIN: 01-607-8455
In stock
NSN: 5331-01-607-8455
FSC Code: 5331
MPN: 605052004

5331-01-607-8225 (6760193)

NIIN: 01-607-8225
In stock
NSN: 5331-01-607-8225
FSC Code: 5331
MPN: 6760193

5331-01-607-6996 (220107)

NIIN: 01-607-6996
In stock
NSN: 5331-01-607-6996
FSC Code: 5331
MPN: 220107

5331-01-607-4575 (M25988-1-019)

NIIN: 01-607-4575
In stock
NSN: 5331-01-607-4575
FSC Code: 5331
MPN: M259881019

5331-01-608-3798 (OR1506200)

NIIN: 01-608-3798
In stock
NSN: 5331-01-608-3798
FSC Code: 5331
MPN: OR1506200

5331-01-608-0228 (10617878-235)

NIIN: 01-608-0228
In stock
NSN: 5331-01-608-0228
FSC Code: 5331
MPN: 10617878235

5331-01-607-7082 (0-3-2-20)

NIIN: 01-607-7082
In stock
NSN: 5331-01-607-7082
FSC Code: 5331
MPN: 03220

5331-01-608-0876 (P02567)

NIIN: 01-608-0876
In stock
NSN: 5331-01-608-0876
FSC Code: 5331
MPN: P02567

5331-01-607-9490 (36686-19)

NIIN: 01-607-9490
In stock
NSN: 5331-01-607-9490
FSC Code: 5331
MPN: 3668619

5331-01-607-4582 (M25988-1-030)

NIIN: 01-607-4582
In stock
NSN: 5331-01-607-4582
FSC Code: 5331
MPN: M259881030

5331-01-607-4066 (K26 25150 106)

NIIN: 01-607-4066
In stock
NSN: 5331-01-607-4066
FSC Code: 5331
MPN: K2625150106

5331-01-608-0223 (10617878-164)

NIIN: 01-608-0223
In stock
NSN: 5331-01-608-0223
FSC Code: 5331
MPN: 10617878164

5331-01-607-7323 (217535)

NIIN: 01-607-7323
In stock
NSN: 5331-01-607-7323
FSC Code: 5331
MPN: 217535

5331-01-607-7095 (0-1-1-18)

NIIN: 01-607-7095
In stock
NSN: 5331-01-607-7095
FSC Code: 5331
MPN: 01118

5331-01-607-2969 (E0540 2-368)

NIIN: 01-607-2969
In stock
NSN: 5331-01-607-2969
FSC Code: 5331
MPN: E05402368

5331-01-607-2570 (E45-0006-412)

NIIN: 01-607-2570
In stock
NSN: 5331-01-607-2570
FSC Code: 5331
MPN: E450006412

5331-01-608-0274 (653037168)

NIIN: 01-608-0274
In stock
NSN: 5331-01-608-0274
FSC Code: 5331
MPN: 653037168

5331-01-607-8427 (0-2-1-16)

NIIN: 01-607-8427
In stock
NSN: 5331-01-607-8427
FSC Code: 5331
MPN: 02116

5331-01-607-7093 (0-2-3-8)

NIIN: 01-607-7093
In stock
NSN: 5331-01-607-7093
FSC Code: 5331
MPN: 0238

5331-01-607-6522 (8468875)

NIIN: 01-607-6522
In stock
NSN: 5331-01-607-6522
FSC Code: 5331
MPN: 8468875

5331-01-607-3664 (R1309P008)

NIIN: 01-607-3664
In stock
NSN: 5331-01-607-3664
FSC Code: 5331
MPN: R1309P008

5331-01-607-3101 (GBV-F3-80-0010 DET. NO. 7)

NIIN: 01-607-3101
In stock
NSN: 5331-01-607-3101
FSC Code: 5331
MPN: GBVF3800010DETNO7

5331-01-607-0567 (810316)

NIIN: 01-607-0567
In stock
NSN: 5331-01-607-0567
FSC Code: 5331
MPN: 810316

5331-01-606-8776 (66.00MMIDX6.0MMCSBUNA70DURO)

NIIN: 01-606-8776
In stock
NSN: 5331-01-606-8776
FSC Code: 5331
MPN: 6600MMIDX60MMCSBUNA70DURO

5331-01-608-0280 (652495363)

NIIN: 01-608-0280
In stock
NSN: 5331-01-608-0280
FSC Code: 5331
MPN: 652495363

5331-01-607-7081 (0-3-2-27)

NIIN: 01-607-7081
In stock
NSN: 5331-01-607-7081
FSC Code: 5331
MPN: 03227

5331-01-607-7087 (0-2-1-19)

NIIN: 01-607-7087
In stock
NSN: 5331-01-607-7087
FSC Code: 5331
MPN: 02119

5331-01-607-6751 (25-806232)

NIIN: 01-607-6751
In stock
NSN: 5331-01-607-6751
FSC Code: 5331
MPN: 25806232

5331-01-607-6541 (2863344-101)

NIIN: 01-607-6541
In stock
NSN: 5331-01-607-6541
FSC Code: 5331
MPN: 2863344101

5331-01-607-4577 (M25988-1-149)

NIIN: 01-607-4577
In stock
NSN: 5331-01-607-4577
FSC Code: 5331
MPN: M259881149

5331-01-607-2050 (58-008-56)

NIIN: 01-607-2050
In stock
NSN: 5331-01-607-2050
FSC Code: 5331
MPN: 5800856

5331-01-607-1137 (SP25 GEARBOX ITEM 20)

NIIN: 01-607-1137
In stock
NSN: 5331-01-607-1137
FSC Code: 5331
MPN: SP25GEARBOXITEM20

5331-01-607-8768 (AS568-333 NEOPRENE-1)

NIIN: 01-607-8768
In stock
NSN: 5331-01-607-8768
FSC Code: 5331
MPN: AS568333NEOPRENE1

5331-01-607-8320 (657040003)

NIIN: 01-607-8320
In stock
NSN: 5331-01-607-8320
FSC Code: 5331
MPN: 657040003

5331-01-607-8078 (6760204)

NIIN: 01-607-8078
In stock
NSN: 5331-01-607-8078
FSC Code: 5331
MPN: 6760204

5331-01-607-7086 (0-4-3-21)

NIIN: 01-607-7086
In stock
NSN: 5331-01-607-7086
FSC Code: 5331
MPN: 04321

5331-01-607-6130 (515-1836-228)

NIIN: 01-607-6130
In stock
NSN: 5331-01-607-6130
FSC Code: 5331
MPN: 5151836228

5331-01-607-4581 (M25988-1-032)

NIIN: 01-607-4581
In stock
NSN: 5331-01-607-4581
FSC Code: 5331
MPN: M259881032

5331-01-607-1418 (220097)

NIIN: 01-607-1418
In stock
NSN: 5331-01-607-1418
FSC Code: 5331
MPN: 220097

5331-01-607-0888 (1218-61)

NIIN: 01-607-0888
In stock
NSN: 5331-01-607-0888
FSC Code: 5331
MPN: 121861

5331-01-606-7990 (221921)

NIIN: 01-606-7990
In stock
NSN: 5331-01-606-7990
FSC Code: 5331
MPN: 221921

5331-01-607-8425 (0-2-3-24)

NIIN: 01-607-8425
In stock
NSN: 5331-01-607-8425
FSC Code: 5331
MPN: 02324

5331-01-607-8287 (MS29153-362)

NIIN: 01-607-8287
In stock
NSN: 5331-01-607-8287
FSC Code: 5331
MPN: MS29153362

5331-01-607-6628 (001.05.1389)

NIIN: 01-607-6628
In stock
NSN: 5331-01-607-6628
FSC Code: 5331
MPN: 001051389

5331-01-607-4578 (M25988-1-150)

NIIN: 01-607-4578
In stock
NSN: 5331-01-607-4578
FSC Code: 5331
MPN: M259881150

5331-01-607-4579 (M25988-1-152)

NIIN: 01-607-4579
In stock
NSN: 5331-01-607-4579
FSC Code: 5331
MPN: M259881152