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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.

5331-00-298-5837 (2-248N951-75)

NIIN: 00-298-5837
In stock
NSN: 5331-00-298-5837
FSC Code: 5331
MPN: 2248N95175

5331-01-105-9152 (2-249)

NIIN: 01-105-9152
In stock
NSN: 5331-01-105-9152
FSC Code: 5331
MPN: 2249

5331-00-580-9765 (2-249)

NIIN: 00-580-9765
In stock
NSN: 5331-00-580-9765
FSC Code: 5331
MPN: 2249

5331-01-186-9320 (2-248A1064-75)

NIIN: 01-186-9320
In stock
NSN: 5331-01-186-9320
FSC Code: 5331
MPN: 2248A106475

5331-00-684-2547 (2-249)

NIIN: 00-684-2547
In stock
NSN: 5331-00-684-2547
FSC Code: 5331
MPN: 2249

5331-00-537-3940 (2-249-77-545)

NIIN: 00-537-3940
In stock
NSN: 5331-00-537-3940
FSC Code: 5331
MPN: 224977545

5331-01-148-9588 (2-249L1223-60)

NIIN: 01-148-9588
In stock
NSN: 5331-01-148-9588
FSC Code: 5331
MPN: 2249L122360

5331-01-012-5148 (2-249-N674-70)

NIIN: 01-012-5148
In stock
NSN: 5331-01-012-5148
FSC Code: 5331
MPN: 2249N67470

5331-01-004-0322 (224-R)

NIIN: 01-004-0322
In stock
NSN: 5331-01-004-0322
FSC Code: 5331
MPN: 224R

5331-01-056-8493 (2-250)

NIIN: 01-056-8493
In stock
NSN: 5331-01-056-8493
FSC Code: 5331
MPN: 2250

5331-00-534-8833 (2-250)

NIIN: 00-534-8833
In stock
NSN: 5331-00-534-8833
FSC Code: 5331
MPN: 2250

5331-00-683-9887 (22502-22)

NIIN: 00-683-9887
In stock
NSN: 5331-00-683-9887
FSC Code: 5331
MPN: 2250222

5331-00-101-2834 (22502-27)

NIIN: 00-101-2834
In stock
NSN: 5331-00-101-2834
FSC Code: 5331
MPN: 2250227

5331-01-311-5974 (22504-10)

NIIN: 01-311-5974
In stock
NSN: 5331-01-311-5974
FSC Code: 5331
MPN: 2250410

5331-01-046-7450 (22504-116)

NIIN: 01-046-7450
In stock
NSN: 5331-01-046-7450
FSC Code: 5331
MPN: 22504116

5331-01-330-9600 (22504-13)

NIIN: 01-330-9600
In stock
NSN: 5331-01-330-9600
FSC Code: 5331
MPN: 2250413

5331-01-294-0198 (22504-227)

NIIN: 01-294-0198
In stock
NSN: 5331-01-294-0198
FSC Code: 5331
MPN: 22504227

5331-01-237-3700 (22504-230)

NIIN: 01-237-3700
In stock
NSN: 5331-01-237-3700
FSC Code: 5331
MPN: 22504230

5331-01-330-9603 (22504-234)

NIIN: 01-330-9603
In stock
NSN: 5331-01-330-9603
FSC Code: 5331
MPN: 22504234

5331-01-289-3132 (22504-230)

NIIN: 01-289-3132
In stock
NSN: 5331-01-289-3132
FSC Code: 5331
MPN: 22504230

5331-01-330-9602 (22504-134)

NIIN: 01-330-9602
In stock
NSN: 5331-01-330-9602
FSC Code: 5331
MPN: 22504134

5331-00-003-1697 (2-250-47-071)

NIIN: 00-003-1697
In stock
NSN: 5331-00-003-1697
FSC Code: 5331
MPN: 225047071

5331-00-950-9715 (2-250-47-071)

NIIN: 00-950-9715
In stock
NSN: 5331-00-950-9715
FSC Code: 5331
MPN: 225047071

5331-01-078-4955 (22504-231)

NIIN: 01-078-4955
In stock
NSN: 5331-01-078-4955
FSC Code: 5331
MPN: 22504231

5331-01-306-5946 (22504-259)

NIIN: 01-306-5946
In stock
NSN: 5331-01-306-5946
FSC Code: 5331
MPN: 22504259

5331-00-070-1970 (2-250L608-6)

NIIN: 00-070-1970
In stock
NSN: 5331-00-070-1970
FSC Code: 5331
MPN: 2250L6086

5331-01-281-3847 (2-250L1120-70)

NIIN: 01-281-3847
In stock
NSN: 5331-01-281-3847
FSC Code: 5331
MPN: 2250L112070

5331-01-006-9037 (2-250V747-75)

NIIN: 01-006-9037
In stock
NSN: 5331-01-006-9037
FSC Code: 5331
MPN: 2250V74775

5331-01-129-2008 (2-250L1223-60)

NIIN: 01-129-2008
In stock
NSN: 5331-01-129-2008
FSC Code: 5331
MPN: 2250L122360

5331-00-060-2682 (2-251)

NIIN: 00-060-2682
In stock
NSN: 5331-00-060-2682
FSC Code: 5331
MPN: 2251

5331-01-126-1232 (2-250E540-8)

NIIN: 01-126-1232
In stock
NSN: 5331-01-126-1232
FSC Code: 5331
MPN: 2250E5408

5331-01-396-5884 (ED00A21R0250-S)

NIIN: 01-396-5884
In stock
NSN: 5331-01-396-5884
FSC Code: 5331
MPN: ED00A21R0250S

5331-01-508-2892 (7700579180010)

NIIN: 01-508-2892
In stock
NSN: 5331-01-508-2892
FSC Code: 5331
MPN: 7700579180010

5331-01-508-2888 (7700579180780)

NIIN: 01-508-2888
In stock
NSN: 5331-01-508-2888
FSC Code: 5331
MPN: 7700579180780

5331-01-508-2891 (7700579180790)

NIIN: 01-508-2891
In stock
NSN: 5331-01-508-2891
FSC Code: 5331
MPN: 7700579180790

5331-01-508-2889 (7700579180690)

NIIN: 01-508-2889
In stock
NSN: 5331-01-508-2889
FSC Code: 5331
MPN: 7700579180690

5331-01-416-9425 (07350083530387)

NIIN: 01-416-9425
In stock
NSN: 5331-01-416-9425
FSC Code: 5331
MPN: 07350083530387

5331-01-424-0628 (830091663762700)

NIIN: 01-424-0628
In stock
NSN: 5331-01-424-0628
FSC Code: 5331
MPN: 830091663762700

5331-00-827-0326 (2251-28)

NIIN: 00-827-0326
In stock
NSN: 5331-00-827-0326
FSC Code: 5331
MPN: 225128

5331-01-147-5372 (2-251E540-80)

NIIN: 01-147-5372
In stock
NSN: 5331-01-147-5372
FSC Code: 5331
MPN: 2251E54080

5331-01-076-6164 (2-251N103-70)

NIIN: 01-076-6164
In stock
NSN: 5331-01-076-6164
FSC Code: 5331
MPN: 2251N10370

5331-01-324-1580 (2-251N304-75)

NIIN: 01-324-1580
In stock
NSN: 5331-01-324-1580
FSC Code: 5331
MPN: 2251N30475

5331-01-268-0167 (2-251L1223-60)

NIIN: 01-268-0167
In stock
NSN: 5331-01-268-0167
FSC Code: 5331
MPN: 2251L122360

5331-00-725-4561 (2-252)

NIIN: 00-725-4561
In stock
NSN: 5331-00-725-4561
FSC Code: 5331
MPN: 2252

5331-00-395-6011 (22-525-13HT)

NIIN: 00-395-6011
In stock
NSN: 5331-00-395-6011
FSC Code: 5331
MPN: 2252513HT

5331-01-419-9126 (LL-HX0-0446)

NIIN: 01-419-9126
In stock
NSN: 5331-01-419-9126
FSC Code: 5331
MPN: LLHX00446

5331-00-395-6012 (22-525-17HT)

NIIN: 00-395-6012
In stock
NSN: 5331-00-395-6012
FSC Code: 5331
MPN: 2252517HT

5331-01-076-4828 (22-525-5-5-LT)

NIIN: 01-076-4828
In stock
NSN: 5331-01-076-4828
FSC Code: 5331
MPN: 2252555LT