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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.

5331-00-494-2494 (S9026E160)

NIIN: 00-494-2494
In stock
NSN: 5331-00-494-2494
FSC Code: 5331
MPN: S9026E160

5331-01-070-8203 (S9026E010)

NIIN: 01-070-8203
In stock
NSN: 5331-01-070-8203
FSC Code: 5331
MPN: S9026E010

5331-01-070-8200 (S9026E265)

NIIN: 01-070-8200
In stock
NSN: 5331-01-070-8200
FSC Code: 5331
MPN: S9026E265

5331-01-181-8372 (S9026E158)

NIIN: 01-181-8372
In stock
NSN: 5331-01-181-8372
FSC Code: 5331
MPN: S9026E158

5331-00-494-2487 (S9026E141)

NIIN: 00-494-2487
In stock
NSN: 5331-00-494-2487
FSC Code: 5331
MPN: S9026E141

5331-01-070-8201 (S9026E011)

NIIN: 01-070-8201
In stock
NSN: 5331-01-070-8201
FSC Code: 5331
MPN: S9026E011

5331-00-143-7931 (S9026E135)

NIIN: 00-143-7931
In stock
NSN: 5331-00-143-7931
FSC Code: 5331
MPN: S9026E135

5331-01-206-2137 (S9026E157)

NIIN: 01-206-2137
In stock
NSN: 5331-01-206-2137
FSC Code: 5331
MPN: S9026E157

5331-00-245-4058 (S9026D034)

NIIN: 00-245-4058
In stock
NSN: 5331-00-245-4058
FSC Code: 5331
MPN: S9026D034

5331-01-219-3497 (S9026-A022)

NIIN: 01-219-3497
In stock
NSN: 5331-01-219-3497
FSC Code: 5331
MPN: S9026A022

5331-00-753-0736 (S9026D212)

NIIN: 00-753-0736
In stock
NSN: 5331-00-753-0736
FSC Code: 5331
MPN: S9026D212

5331-00-489-8822 (S9026A325)

NIIN: 00-489-8822
In stock
NSN: 5331-00-489-8822
FSC Code: 5331
MPN: S9026A325

5331-00-914-2886 (S9026D110)

NIIN: 00-914-2886
In stock
NSN: 5331-00-914-2886
FSC Code: 5331
MPN: S9026D110

5331-01-201-8609 (S9026)

NIIN: 01-201-8609
In stock
NSN: 5331-01-201-8609
FSC Code: 5331
MPN: S9026

5331-01-144-8928 (S9026A160)

NIIN: 01-144-8928
In stock
NSN: 5331-01-144-8928
FSC Code: 5331
MPN: S9026A160

5331-00-997-6910 (S9026A041)

NIIN: 00-997-6910
In stock
NSN: 5331-00-997-6910
FSC Code: 5331
MPN: S9026A041

5331-00-935-9167 (S9026A155)

NIIN: 00-935-9167
In stock
NSN: 5331-00-935-9167
FSC Code: 5331
MPN: S9026A155

5331-01-350-5354 (CG880116)

NIIN: 01-350-5354
In stock
NSN: 5331-01-350-5354
FSC Code: 5331
MPN: CG880116

5331-01-379-5981 (CG81019-7-2.5IN)

NIIN: 01-379-5981
In stock
NSN: 5331-01-379-5981
FSC Code: 5331
MPN: CG81019725IN

5331-01-024-9774 (S9005E18)

NIIN: 01-024-9774
In stock
NSN: 5331-01-024-9774
FSC Code: 5331
MPN: S9005E18

5331-00-401-4721 (S9005E38)

NIIN: 00-401-4721
In stock
NSN: 5331-00-401-4721
FSC Code: 5331
MPN: S9005E38

5331-00-253-4846 (S9005E9)

NIIN: 00-253-4846
In stock
NSN: 5331-00-253-4846
FSC Code: 5331
MPN: S9005E9

5331-00-492-6357 (S9005G6)

NIIN: 00-492-6357
In stock
NSN: 5331-00-492-6357
FSC Code: 5331
MPN: S9005G6

5331-01-270-1760 (S8990-740)

NIIN: 01-270-1760
In stock
NSN: 5331-01-270-1760
FSC Code: 5331
MPN: S8990740

5331-01-244-1085 (S8990-704)

NIIN: 01-244-1085
In stock
NSN: 5331-01-244-1085
FSC Code: 5331
MPN: S8990704

5331-01-242-7459 (S8990-741)

NIIN: 01-242-7459
In stock
NSN: 5331-01-242-7459
FSC Code: 5331
MPN: S8990741

5331-01-126-2646 (S8990-700)

NIIN: 01-126-2646
In stock
NSN: 5331-01-126-2646
FSC Code: 5331
MPN: S8990700

5331-01-219-4179 (S8990-617)

NIIN: 01-219-4179
In stock
NSN: 5331-01-219-4179
FSC Code: 5331
MPN: S8990617

5331-01-088-8964 (S8990-656)

NIIN: 01-088-8964
In stock
NSN: 5331-01-088-8964
FSC Code: 5331
MPN: S8990656

5331-00-245-7200 (S8990-612)

NIIN: 00-245-7200
In stock
NSN: 5331-00-245-7200
FSC Code: 5331
MPN: S8990612

5331-00-240-4413 (S8990-597)

NIIN: 00-240-4413
In stock
NSN: 5331-00-240-4413
FSC Code: 5331
MPN: S8990597

5331-00-245-7164 (S8990-595)

NIIN: 00-245-7164
In stock
NSN: 5331-00-245-7164
FSC Code: 5331
MPN: S8990595

5331-01-018-2820 (S8990-594)

NIIN: 01-018-2820
In stock
NSN: 5331-01-018-2820
FSC Code: 5331
MPN: S8990594

5331-00-111-5531 (S8990-580)

NIIN: 00-111-5531
In stock
NSN: 5331-00-111-5531
FSC Code: 5331
MPN: S8990580

5331-00-143-8403 (S8990-582)

NIIN: 00-143-8403
In stock
NSN: 5331-00-143-8403
FSC Code: 5331
MPN: S8990582

5331-01-045-2934 (S8990-588)

NIIN: 01-045-2934
In stock
NSN: 5331-01-045-2934
FSC Code: 5331
MPN: S8990588

5331-00-526-2024 (S8990-590)

NIIN: 00-526-2024
In stock
NSN: 5331-00-526-2024
FSC Code: 5331
MPN: S8990590

5331-01-027-2020 (S8990-576)

NIIN: 01-027-2020
In stock
NSN: 5331-01-027-2020
FSC Code: 5331
MPN: S8990576

5331-01-147-9799 (S8990-589)

NIIN: 01-147-9799
In stock
NSN: 5331-01-147-9799
FSC Code: 5331
MPN: S8990589

5331-00-549-8279 (S8990-587)

NIIN: 00-549-8279
In stock
NSN: 5331-00-549-8279
FSC Code: 5331
MPN: S8990587

5331-00-111-4208 (S8990-577)

NIIN: 00-111-4208
In stock
NSN: 5331-00-111-4208
FSC Code: 5331
MPN: S8990577

5331-01-232-1483 (S8990-571)

NIIN: 01-232-1483
In stock
NSN: 5331-01-232-1483
FSC Code: 5331
MPN: S8990571

5331-00-220-2946 (S8990-585)

NIIN: 00-220-2946
In stock
NSN: 5331-00-220-2946
FSC Code: 5331
MPN: S8990585

5331-00-524-0732 (S8990-572)

NIIN: 00-524-0732
In stock
NSN: 5331-00-524-0732
FSC Code: 5331
MPN: S8990572

5331-01-205-9215 (S8990-575)

NIIN: 01-205-9215
In stock
NSN: 5331-01-205-9215
FSC Code: 5331
MPN: S8990575

5331-00-809-0782 (S8990-521)

NIIN: 00-809-0782
In stock
NSN: 5331-00-809-0782
FSC Code: 5331
MPN: S8990521

5331-00-951-2494 (S8990-33)

NIIN: 00-951-2494
In stock
NSN: 5331-00-951-2494
FSC Code: 5331
MPN: S899033

5331-01-057-9224 (S8990-567)

NIIN: 01-057-9224
In stock
NSN: 5331-01-057-9224
FSC Code: 5331
MPN: S8990567