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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.

5331-01-431-8259 (07-57-299)

NIIN: 01-431-8259
In stock
NSN: 5331-01-431-8259
FSC Code: 5331
MPN: 0757299

5331-01-431-8261 (07-57-300)

NIIN: 01-431-8261
In stock
NSN: 5331-01-431-8261
FSC Code: 5331
MPN: 0757300

5331-01-431-8263 (07-57-297)

NIIN: 01-431-8263
In stock
NSN: 5331-01-431-8263
FSC Code: 5331
MPN: 0757297

5331-01-431-8272 (07-57-296)

NIIN: 01-431-8272
In stock
NSN: 5331-01-431-8272
FSC Code: 5331
MPN: 0757296

5331-01-431-8269 (07-57-298)

NIIN: 01-431-8269
In stock
NSN: 5331-01-431-8269
FSC Code: 5331
MPN: 0757298

5331-00-678-3786 (27-10)

NIIN: 00-678-3786
In stock
NSN: 5331-00-678-3786
FSC Code: 5331
MPN: 2710

5331-01-419-5221 (073337-0104)

NIIN: 01-419-5221
In stock
NSN: 5331-01-419-5221
FSC Code: 5331
MPN: 0733370104

5331-01-419-9217 (073127-0062)

NIIN: 01-419-9217
In stock
NSN: 5331-01-419-9217
FSC Code: 5331
MPN: 0731270062

5331-01-419-5215 (073120-0062)

NIIN: 01-419-5215
In stock
NSN: 5331-01-419-5215
FSC Code: 5331
MPN: 0731200062

5331-01-513-7428 (0730-162-120)

NIIN: 01-513-7428
In stock
NSN: 5331-01-513-7428
FSC Code: 5331
MPN: 0730162120

5331-01-054-0855 (270AS152-1)

NIIN: 01-054-0855
In stock
NSN: 5331-01-054-0855
FSC Code: 5331
MPN: 270AS1521

5331-01-014-7492 (2708-001)

NIIN: 01-014-7492
In stock
NSN: 5331-01-014-7492
FSC Code: 5331
MPN: 2708001

5331-01-194-3948 (2708-001)

NIIN: 01-194-3948
In stock
NSN: 5331-01-194-3948
FSC Code: 5331
MPN: 2708001

5331-00-840-9165 (27-07)

NIIN: 00-840-9165
In stock
NSN: 5331-00-840-9165
FSC Code: 5331
MPN: 2707

5331-01-341-2870 (FIND 41 115657175FIND41)

NIIN: 01-341-2870
In stock
NSN: 5331-01-341-2870
FSC Code: 5331
MPN: FIND41115657175FIND41

5331-01-102-0342 (2707-001)

NIIN: 01-102-0342
In stock
NSN: 5331-01-102-0342
FSC Code: 5331
MPN: 2707001

5331-01-341-2871 (FIND 42 115657175FIND42)

NIIN: 01-341-2871
In stock
NSN: 5331-01-341-2871
FSC Code: 5331
MPN: FIND42115657175FIND42

5331-01-540-0665 (072-00057)

NIIN: 01-540-0665
In stock
NSN: 5331-01-540-0665
FSC Code: 5331
MPN: 07200057

5331-01-102-0343 (2706-001)

NIIN: 01-102-0343
In stock
NSN: 5331-01-102-0343
FSC Code: 5331
MPN: 2706001

5331-01-571-8508 (F45460PC76)

NIIN: 01-571-8508
In stock
NSN: 5331-01-571-8508
FSC Code: 5331
MPN: F45460PC76

5331-01-139-6503 (27056N)

NIIN: 01-139-6503
In stock
NSN: 5331-01-139-6503
FSC Code: 5331
MPN: 27056N

5331-00-558-1356 (270513R1)

NIIN: 00-558-1356
In stock
NSN: 5331-00-558-1356
FSC Code: 5331
MPN: 270513R1

5331-01-340-6854 (FIND 42 115651020FIND42)

NIIN: 01-340-6854
In stock
NSN: 5331-01-340-6854
FSC Code: 5331
MPN: FIND42115651020FIND42

5331-01-307-4995 (2705-001)

NIIN: 01-307-4995
In stock
NSN: 5331-01-307-4995
FSC Code: 5331
MPN: 2705001

5331-01-340-8184 (0713020599-3)

NIIN: 01-340-8184
In stock
NSN: 5331-01-340-8184
FSC Code: 5331
MPN: 07130205993

5331-01-442-6948 (07-118)

NIIN: 01-442-6948
In stock
NSN: 5331-01-442-6948
FSC Code: 5331
MPN: 07118

5331-01-445-7726 (07-106)

NIIN: 01-445-7726
In stock
NSN: 5331-01-445-7726
FSC Code: 5331
MPN: 07106

5331-01-442-6945 (07-103)

NIIN: 01-442-6945
In stock
NSN: 5331-01-442-6945
FSC Code: 5331
MPN: 07103

5331-01-419-5223 (070818-0104)

NIIN: 01-419-5223
In stock
NSN: 5331-01-419-5223
FSC Code: 5331
MPN: 0708180104

5331-01-111-0017 (2700673-016)

NIIN: 01-111-0017
In stock
NSN: 5331-01-111-0017
FSC Code: 5331
MPN: 2700673016

5331-01-137-6285 (270030PA)

NIIN: 01-137-6285
In stock
NSN: 5331-01-137-6285
FSC Code: 5331
MPN: 270030PA

5331-01-204-6671 (270-0014)

NIIN: 01-204-6671
In stock
NSN: 5331-01-204-6671
FSC Code: 5331
MPN: 2700014

5331-12-122-4224 (0R20-3X2-4-70NBR769)

NIIN: 12-122-4224
In stock
NSN: 5331-12-122-4224
FSC Code: 5331
MPN: 0R203X2470NBR769

5331-01-566-9014 (07002-13334)

NIIN: 01-566-9014
In stock
NSN: 5331-01-566-9014
FSC Code: 5331
MPN: 0700213334

5331-01-537-1362 (07000-03100)

NIIN: 01-537-1362
In stock
NSN: 5331-01-537-1362
FSC Code: 5331
MPN: 0700003100

5331-01-566-9018 (07000-15230)

NIIN: 01-566-9018
In stock
NSN: 5331-01-566-9018
FSC Code: 5331
MPN: 0700015230

5331-01-057-2940 (26M02-7003)

NIIN: 01-057-2940
In stock
NSN: 5331-01-057-2940
FSC Code: 5331
MPN: 26M027003

5331-01-506-2043 (07000-12115)

NIIN: 01-506-2043
In stock
NSN: 5331-01-506-2043
FSC Code: 5331
MPN: 0700012115

5331-01-568-5462 (07000-15200)

NIIN: 01-568-5462
In stock
NSN: 5331-01-568-5462
FSC Code: 5331
MPN: 0700015200

5331-01-568-5459 (07000-12012)

NIIN: 01-568-5459
In stock
NSN: 5331-01-568-5459
FSC Code: 5331
MPN: 0700012012

5331-01-506-2000 (07000-12065)

NIIN: 01-506-2000
In stock
NSN: 5331-01-506-2000
FSC Code: 5331
MPN: 0700012065

5331-01-572-2802 (C430-025-0000)

NIIN: 01-572-2802
In stock
NSN: 5331-01-572-2802
FSC Code: 5331
MPN: C4300250000

5331-01-566-9009 (07000-03022)

NIIN: 01-566-9009
In stock
NSN: 5331-01-566-9009
FSC Code: 5331
MPN: 0700003022

5331-01-568-5461 (07000-02105)

NIIN: 01-568-5461
In stock
NSN: 5331-01-568-5461
FSC Code: 5331
MPN: 0700002105

5331-01-566-9015 (07000-05180)

NIIN: 01-566-9015
In stock
NSN: 5331-01-566-9015
FSC Code: 5331
MPN: 0700005180

5331-01-566-9019 (07000-05270)

NIIN: 01-566-9019
In stock
NSN: 5331-01-566-9019
FSC Code: 5331
MPN: 0700005270

5331-01-506-2092 (07000-02120)

NIIN: 01-506-2092
In stock
NSN: 5331-01-506-2092
FSC Code: 5331
MPN: 0700002120

5331-01-568-5460 (07000-02125)

NIIN: 01-568-5460
In stock
NSN: 5331-01-568-5460
FSC Code: 5331
MPN: 0700002125