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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.

5331-01-392-6718 (48139A)

NIIN: 01-392-6718
In stock
NSN: 5331-01-392-6718
FSC Code: 5331
MPN: 48139A

5331-01-093-3501 (906-C-69)

NIIN: 01-093-3501
In stock
NSN: 5331-01-093-3501
FSC Code: 5331
MPN: 906C69

5331-01-026-2719 (906-7507)

NIIN: 01-026-2719
In stock
NSN: 5331-01-026-2719
FSC Code: 5331
MPN: 9067507

5331-00-810-9257 (906-7377AN)

NIIN: 00-810-9257
In stock
NSN: 5331-00-810-9257
FSC Code: 5331
MPN: 9067377AN

5331-00-659-4676 (906-711-70)

NIIN: 00-659-4676
In stock
NSN: 5331-00-659-4676
FSC Code: 5331
MPN: 90671170

5331-01-018-0759 (9066-219)

NIIN: 01-018-0759
In stock
NSN: 5331-01-018-0759
FSC Code: 5331
MPN: 9066219

5331-01-161-2426 (9066-16)

NIIN: 01-161-2426
In stock
NSN: 5331-01-161-2426
FSC Code: 5331
MPN: 906616

5331-01-126-5154 (906-60-00-99)

NIIN: 01-126-5154
In stock
NSN: 5331-01-126-5154
FSC Code: 5331
MPN: 906600099

5331-01-246-2543 (9062-0-64)

NIIN: 01-246-2543
In stock
NSN: 5331-01-246-2543
FSC Code: 5331
MPN: 9062064

5331-00-912-9178 (906-1710-70)

NIIN: 00-912-9178
In stock
NSN: 5331-00-912-9178
FSC Code: 5331
MPN: 906171070

5331-00-052-6947 (906-1487)

NIIN: 00-052-6947
In stock
NSN: 5331-00-052-6947
FSC Code: 5331
MPN: 9061487

5331-01-381-9864 (4808H)

NIIN: 01-381-9864
In stock
NSN: 5331-01-381-9864
FSC Code: 5331
MPN: 4808H

5331-00-964-3166 (905-711-70)

NIIN: 00-964-3166
In stock
NSN: 5331-00-964-3166
FSC Code: 5331
MPN: 90571170

5331-01-398-4074 (48025B)

NIIN: 01-398-4074
In stock
NSN: 5331-01-398-4074
FSC Code: 5331
MPN: 48025B

5331-01-111-7394 (905-0912.9)

NIIN: 01-111-7394
In stock
NSN: 5331-01-111-7394
FSC Code: 5331
MPN: 90509129

5331-01-490-3238 (480-1325)

NIIN: 01-490-3238
In stock
NSN: 5331-01-490-3238
FSC Code: 5331
MPN: 4801325

5331-01-111-7395 (905-0014.8)

NIIN: 01-111-7395
In stock
NSN: 5331-01-111-7395
FSC Code: 5331
MPN: 90500148

5331-00-263-8020 (904-C-69)

NIIN: 00-263-8020
In stock
NSN: 5331-00-263-8020
FSC Code: 5331
MPN: 904C69

5331-00-327-4485 (904-9259)

NIIN: 00-327-4485
In stock
NSN: 5331-00-327-4485
FSC Code: 5331
MPN: 9049259

5331-00-006-4874 (904-7507)

NIIN: 00-006-4874
In stock
NSN: 5331-00-006-4874
FSC Code: 5331
MPN: 9047507

5331-01-280-8009 (904-7504)

NIIN: 01-280-8009
In stock
NSN: 5331-01-280-8009
FSC Code: 5331
MPN: 9047504

5331-01-209-3666 (904555-0006)

NIIN: 01-209-3666
In stock
NSN: 5331-01-209-3666
FSC Code: 5331
MPN: 9045550006

5331-01-042-6327 (904-1529)

NIIN: 01-042-6327
In stock
NSN: 5331-01-042-6327
FSC Code: 5331
MPN: 9041529

5331-01-447-9665 (47A1435)

NIIN: 01-447-9665
In stock
NSN: 5331-01-447-9665
FSC Code: 5331
MPN: 47A1435

5331-01-239-7123 (904-01-021-3577)

NIIN: 01-239-7123
In stock
NSN: 5331-01-239-7123
FSC Code: 5331
MPN: 904010213577

5331-01-285-3174 (904/08100)

NIIN: 01-285-3174
In stock
NSN: 5331-01-285-3174
FSC Code: 5331
MPN: 90408100

5331-01-285-3173 (904/07800)

NIIN: 01-285-3173
In stock
NSN: 5331-01-285-3173
FSC Code: 5331
MPN: 90407800

5331-00-442-7653 (903615C1)

NIIN: 00-442-7653
In stock
NSN: 5331-00-442-7653
FSC Code: 5331
MPN: 903615C1

5331-00-514-4630 (9035-8A)

NIIN: 00-514-4630
In stock
NSN: 5331-00-514-4630
FSC Code: 5331
MPN: 90358A

5331-01-350-2980 (478543R1)

NIIN: 01-350-2980
In stock
NSN: 5331-01-350-2980
FSC Code: 5331
MPN: 478543R1

5331-00-432-6536 (903438C1)

NIIN: 00-432-6536
In stock
NSN: 5331-00-432-6536
FSC Code: 5331
MPN: 903438C1

5331-00-432-6533 (903422C1)

NIIN: 00-432-6533
In stock
NSN: 5331-00-432-6533
FSC Code: 5331
MPN: 903422C1

5331-00-427-7132 (903421C1)

NIIN: 00-427-7132
In stock
NSN: 5331-00-427-7132
FSC Code: 5331
MPN: 903421C1

5331-00-427-7064 (903285C1)

NIIN: 00-427-7064
In stock
NSN: 5331-00-427-7064
FSC Code: 5331
MPN: 903285C1

5331-00-427-7126 (903286C1)

NIIN: 00-427-7126
In stock
NSN: 5331-00-427-7126
FSC Code: 5331
MPN: 903286C1

5331-00-427-7127 (903290C1)

NIIN: 00-427-7127
In stock
NSN: 5331-00-427-7127
FSC Code: 5331
MPN: 903290C1

5331-01-070-9653 (903271C1)

NIIN: 01-070-9653
In stock
NSN: 5331-01-070-9653
FSC Code: 5331
MPN: 903271C1

5331-01-198-3492 (903281C1)

NIIN: 01-198-3492
In stock
NSN: 5331-01-198-3492
FSC Code: 5331
MPN: 903281C1

5331-01-289-0321 (903256C1)

NIIN: 01-289-0321
In stock
NSN: 5331-01-289-0321
FSC Code: 5331
MPN: 903256C1

5331-00-427-7063 (903254C1)

NIIN: 00-427-7063
In stock
NSN: 5331-00-427-7063
FSC Code: 5331
MPN: 903254C1

5331-00-503-6199 (903223-6)

NIIN: 00-503-6199
In stock
NSN: 5331-00-503-6199
FSC Code: 5331
MPN: 9032236

5331-00-879-7917 (903223-32)

NIIN: 00-879-7917
In stock
NSN: 5331-00-879-7917
FSC Code: 5331
MPN: 90322332

5331-00-393-3747 (903217C1)

NIIN: 00-393-3747
In stock
NSN: 5331-00-393-3747
FSC Code: 5331
MPN: 903217C1

5331-00-437-3438 (902E784ITEM7)

NIIN: 00-437-3438
In stock
NSN: 5331-00-437-3438
FSC Code: 5331
MPN: 902E784ITEM7

5331-01-249-7879 (902-9-292)

NIIN: 01-249-7879
In stock
NSN: 5331-01-249-7879
FSC Code: 5331
MPN: 9029292

5331-00-812-1375 (902-8)

NIIN: 00-812-1375
In stock
NSN: 5331-00-812-1375
FSC Code: 5331
MPN: 9028

5331-00-818-3133 (902-69-907-70)

NIIN: 00-818-3133
In stock
NSN: 5331-00-818-3133
FSC Code: 5331
MPN: 9026990770

5331-00-819-4636 (902-7)

NIIN: 00-819-4636
In stock
NSN: 5331-00-819-4636
FSC Code: 5331
MPN: 9027