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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.

5331-01-177-5721 (967434-1)

NIIN: 01-177-5721
In stock
NSN: 5331-01-177-5721
FSC Code: 5331
MPN: 9674341

5331-01-317-3980 (967643-8)

NIIN: 01-317-3980
In stock
NSN: 5331-01-317-3980
FSC Code: 5331
MPN: 9676438

5331-00-466-0728 (9672M09P12)

NIIN: 00-466-0728
In stock
NSN: 5331-00-466-0728
FSC Code: 5331
MPN: 9672M09P12

5331-00-460-4988 (9672M09P04)

NIIN: 00-460-4988
In stock
NSN: 5331-00-460-4988
FSC Code: 5331
MPN: 9672M09P04

5331-00-411-6878 (9672M09P08)

NIIN: 00-411-6878
In stock
NSN: 5331-00-411-6878
FSC Code: 5331
MPN: 9672M09P08

5331-01-326-0978 (9666-799-1)

NIIN: 01-326-0978
In stock
NSN: 5331-01-326-0978
FSC Code: 5331
MPN: 96667991

5331-01-393-1328 (509E803BRPN12)

NIIN: 01-393-1328
In stock
NSN: 5331-01-393-1328
FSC Code: 5331
MPN: 509E803BRPN12

5331-01-098-0470 (966549-1)

NIIN: 01-098-0470
In stock
NSN: 5331-01-098-0470
FSC Code: 5331
MPN: 9665491

5331-01-245-4093 (96515K26)

NIIN: 01-245-4093
In stock
NSN: 5331-01-245-4093
FSC Code: 5331
MPN: 96515K26

5331-01-244-8960 (96515K25)

NIIN: 01-244-8960
In stock
NSN: 5331-01-244-8960
FSC Code: 5331
MPN: 96515K25

5331-01-559-3026 (509-0329)

NIIN: 01-559-3026
In stock
NSN: 5331-01-559-3026
FSC Code: 5331
MPN: 5090329

5331-01-343-2661 (C0509017900)

NIIN: 01-343-2661
In stock
NSN: 5331-01-343-2661
FSC Code: 5331
MPN: C0509017900

5331-01-514-0151 (509-0375)

NIIN: 01-514-0151
In stock
NSN: 5331-01-514-0151
FSC Code: 5331
MPN: 5090375

5331-01-514-0150 (509-0254)

NIIN: 01-514-0150
In stock
NSN: 5331-01-514-0150
FSC Code: 5331
MPN: 5090254

5331-01-449-3953 (R03917-118-70BNB)

NIIN: 01-449-3953
In stock
NSN: 5331-01-449-3953
FSC Code: 5331
MPN: R0391711870BNB

5331-01-343-2664 (C0509-01900)

NIIN: 01-343-2664
In stock
NSN: 5331-01-343-2664
FSC Code: 5331
MPN: C050901900

5331-01-421-8352 (508P885-02)

NIIN: 01-421-8352
In stock
NSN: 5331-01-421-8352
FSC Code: 5331
MPN: 508P88502

5331-00-192-0532 (96412-33)

NIIN: 00-192-0532
In stock
NSN: 5331-00-192-0532
FSC Code: 5331
MPN: 9641233

5331-00-341-7744 (9-632-100073)

NIIN: 00-341-7744
In stock
NSN: 5331-00-341-7744
FSC Code: 5331
MPN: 9632100073

5331-00-857-7181 (962A796P13)

NIIN: 00-857-7181
In stock
NSN: 5331-00-857-7181
FSC Code: 5331
MPN: 962A796P13

5331-00-115-3153 (9628M34P01)

NIIN: 00-115-3153
In stock
NSN: 5331-00-115-3153
FSC Code: 5331
MPN: 9628M34P01

5331-00-115-1611 (9628M34P02)

NIIN: 00-115-1611
In stock
NSN: 5331-00-115-1611
FSC Code: 5331
MPN: 9628M34P02

5331-01-258-9140 (961131-013)

NIIN: 01-258-9140
In stock
NSN: 5331-01-258-9140
FSC Code: 5331
MPN: 961131013

5331-01-312-4812 (9607M05P46)

NIIN: 01-312-4812
In stock
NSN: 5331-01-312-4812
FSC Code: 5331
MPN: 9607M05P46

5331-01-190-0185 (9607M05P45)

NIIN: 01-190-0185
In stock
NSN: 5331-01-190-0185
FSC Code: 5331
MPN: 9607M05P45

5331-00-112-2178 (9607M05P07)

NIIN: 00-112-2178
In stock
NSN: 5331-00-112-2178
FSC Code: 5331
MPN: 9607M05P07

5331-00-115-6502 (9607M05P09)

NIIN: 00-115-6502
In stock
NSN: 5331-00-115-6502
FSC Code: 5331
MPN: 9607M05P09

5331-01-181-4047 (9607M05P47)

NIIN: 01-181-4047
In stock
NSN: 5331-01-181-4047
FSC Code: 5331
MPN: 9607M05P47

5331-00-107-8652 (9607M05P02)

NIIN: 00-107-8652
In stock
NSN: 5331-00-107-8652
FSC Code: 5331
MPN: 9607M05P02

5331-00-117-4863 (9607M05P05)

NIIN: 00-117-4863
In stock
NSN: 5331-00-117-4863
FSC Code: 5331
MPN: 9607M05P05

5331-00-107-8651 (9607M05P03)

NIIN: 00-107-8651
In stock
NSN: 5331-00-107-8651
FSC Code: 5331
MPN: 9607M05P03

5331-01-098-0471 (960338-113)

NIIN: 01-098-0471
In stock
NSN: 5331-01-098-0471
FSC Code: 5331
MPN: 960338113

5331-01-209-6993 (960288-1)

NIIN: 01-209-6993
In stock
NSN: 5331-01-209-6993
FSC Code: 5331
MPN: 9602881

5331-01-528-0302 (5-079)

NIIN: 01-528-0302
In stock
NSN: 5331-01-528-0302
FSC Code: 5331
MPN: 5079

5331-01-310-5189 (960166-7)

NIIN: 01-310-5189
In stock
NSN: 5331-01-310-5189
FSC Code: 5331
MPN: 9601667

5331-01-205-9781 (960156-8)

NIIN: 01-205-9781
In stock
NSN: 5331-01-205-9781
FSC Code: 5331
MPN: 9601568

5331-01-513-2338 (5-073N674-70)

NIIN: 01-513-2338
In stock
NSN: 5331-01-513-2338
FSC Code: 5331
MPN: 5073N67470

5331-01-316-7576 (959-18)

NIIN: 01-316-7576
In stock
NSN: 5331-01-316-7576
FSC Code: 5331
MPN: 95918

5331-01-381-2557 (5-069N674-70)

NIIN: 01-381-2557
In stock
NSN: 5331-01-381-2557
FSC Code: 5331
MPN: 5069N67470

5331-01-507-7675 (5069-33)

NIIN: 01-507-7675
In stock
NSN: 5331-01-507-7675
FSC Code: 5331
MPN: 506933

5331-01-334-3453 (9573B)

NIIN: 01-334-3453
In stock
NSN: 5331-01-334-3453
FSC Code: 5331
MPN: 9573B

5331-01-272-3325 (9570-07)

NIIN: 01-272-3325
In stock
NSN: 5331-01-272-3325
FSC Code: 5331
MPN: 957007

5331-00-965-6439 (956A964P20)

NIIN: 00-965-6439
In stock
NSN: 5331-00-965-6439
FSC Code: 5331
MPN: 956A964P20

5331-00-003-0883 (9565P11)

NIIN: 00-003-0883
In stock
NSN: 5331-00-003-0883
FSC Code: 5331
MPN: 9565P11

5331-01-209-7290 (95602-0054)

NIIN: 01-209-7290
In stock
NSN: 5331-01-209-7290
FSC Code: 5331
MPN: 956020054

5331-01-209-7284 (95602/0051)

NIIN: 01-209-7284
In stock
NSN: 5331-01-209-7284
FSC Code: 5331
MPN: 956020051

5331-01-211-1495 (95602/0050)

NIIN: 01-211-1495
In stock
NSN: 5331-01-211-1495
FSC Code: 5331
MPN: 956020050

5331-01-205-9769 (95598-6)

NIIN: 01-205-9769
In stock
NSN: 5331-01-205-9769
FSC Code: 5331
MPN: 955986