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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.

5331-00-542-1856 (2-240B278-7)

NIIN: 00-542-1856
In stock
NSN: 5331-00-542-1856
FSC Code: 5331
MPN: 2240B2787

5331-00-436-3322 (22409R1)

NIIN: 00-436-3322
In stock
NSN: 5331-00-436-3322
FSC Code: 5331
MPN: 22409R1

5331-00-032-4023 (2-240L1223-60)

NIIN: 00-032-4023
In stock
NSN: 5331-00-032-4023
FSC Code: 5331
MPN: 2240L122360

5331-00-245-5054 (2-240-E688-70)

NIIN: 00-245-5054
In stock
NSN: 5331-00-245-5054
FSC Code: 5331
MPN: 2240E68870

5331-01-214-2703 (2-240L06-80)

NIIN: 01-214-2703
In stock
NSN: 5331-01-214-2703
FSC Code: 5331
MPN: 2240L0680

5331-00-097-9029 (2-240N103-70)

NIIN: 00-097-9029
In stock
NSN: 5331-00-097-9029
FSC Code: 5331
MPN: 2240N10370

5331-01-105-1885 (2-240N525-60)

NIIN: 01-105-1885
In stock
NSN: 5331-01-105-1885
FSC Code: 5331
MPN: 2240N52560

5331-01-036-2817 (2-240N507-9)

NIIN: 01-036-2817
In stock
NSN: 5331-01-036-2817
FSC Code: 5331
MPN: 2240N5079

5331-01-184-6493 (2-240E515-80)

NIIN: 01-184-6493
In stock
NSN: 5331-01-184-6493
FSC Code: 5331
MPN: 2240E51580

5331-01-265-6148 (2-241)

NIIN: 01-265-6148
In stock
NSN: 5331-01-265-6148
FSC Code: 5331
MPN: 2241

5331-00-834-3464 (2-241)

NIIN: 00-834-3464
In stock
NSN: 5331-00-834-3464
FSC Code: 5331
MPN: 2241

5331-00-072-3665 (2-241)

NIIN: 00-072-3665
In stock
NSN: 5331-00-072-3665
FSC Code: 5331
MPN: 2241

5331-00-964-2807 (2-241)

NIIN: 00-964-2807
In stock
NSN: 5331-00-964-2807
FSC Code: 5331
MPN: 2241

5331-01-065-9746 (22412R1)

NIIN: 01-065-9746
In stock
NSN: 5331-01-065-9746
FSC Code: 5331
MPN: 22412R1

5331-01-257-9156 (22415R1)

NIIN: 01-257-9156
In stock
NSN: 5331-01-257-9156
FSC Code: 5331
MPN: 22415R1

5331-01-167-1586 (2-241V709-90)

NIIN: 01-167-1586
In stock
NSN: 5331-01-167-1586
FSC Code: 5331
MPN: 2241V70990

5331-00-291-7192 (2-241N951-75)

NIIN: 00-291-7192
In stock
NSN: 5331-00-291-7192
FSC Code: 5331
MPN: 2241N95175

5331-01-051-2497 (2-241V747-75)

NIIN: 01-051-2497
In stock
NSN: 5331-01-051-2497
FSC Code: 5331
MPN: 2241V74775

5331-01-013-8964 (2-241-S613-6)

NIIN: 01-013-8964
In stock
NSN: 5331-01-013-8964
FSC Code: 5331
MPN: 2241S6136

5331-01-150-5925 (2-241-E515-80)

NIIN: 01-150-5925
In stock
NSN: 5331-01-150-5925
FSC Code: 5331
MPN: 2241E51580

5331-00-806-3246 (2-242)

NIIN: 00-806-3246
In stock
NSN: 5331-00-806-3246
FSC Code: 5331
MPN: 2242

5331-01-232-6990 (2-241N674-70)

NIIN: 01-232-6990
In stock
NSN: 5331-01-232-6990
FSC Code: 5331
MPN: 2241N67470

5331-01-133-8653 (2-242)

NIIN: 01-133-8653
In stock
NSN: 5331-01-133-8653
FSC Code: 5331
MPN: 2242

5331-01-003-7588 (2-241E540-80)

NIIN: 01-003-7588
In stock
NSN: 5331-01-003-7588
FSC Code: 5331
MPN: 2241E54080

5331-00-585-0398 (2-242)

NIIN: 00-585-0398
In stock
NSN: 5331-00-585-0398
FSC Code: 5331
MPN: 2242

5331-00-402-5840 (22421R1)

NIIN: 00-402-5840
In stock
NSN: 5331-00-402-5840
FSC Code: 5331
MPN: 22421R1

5331-00-175-6140 (22422R1)

NIIN: 00-175-6140
In stock
NSN: 5331-00-175-6140
FSC Code: 5331
MPN: 22422R1

5331-00-463-0201 (2-242C147-7)

NIIN: 00-463-0201
In stock
NSN: 5331-00-463-0201
FSC Code: 5331
MPN: 2242C1477

5331-00-006-2370 (2-242E540-8)

NIIN: 00-006-2370
In stock
NSN: 5331-00-006-2370
FSC Code: 5331
MPN: 2242E5408

5331-00-279-9353 (2-242L677-70)

NIIN: 00-279-9353
In stock
NSN: 5331-00-279-9353
FSC Code: 5331
MPN: 2242L67770

5331-01-129-2004 (2-242L1223-60)

NIIN: 01-129-2004
In stock
NSN: 5331-01-129-2004
FSC Code: 5331
MPN: 2242L122360

5331-01-204-8585 (2-242-L449-65)

NIIN: 01-204-8585
In stock
NSN: 5331-01-204-8585
FSC Code: 5331
MPN: 2242L44965

5331-00-816-4714 (2-242N179-70)

NIIN: 00-816-4714
In stock
NSN: 5331-00-816-4714
FSC Code: 5331
MPN: 2242N17970

5331-00-403-6418 (2-242N183-9)

NIIN: 00-403-6418
In stock
NSN: 5331-00-403-6418
FSC Code: 5331
MPN: 2242N1839

5331-00-274-7273 (2-242-S604-70)

NIIN: 00-274-7273
In stock
NSN: 5331-00-274-7273
FSC Code: 5331
MPN: 2242S60470

5331-00-579-7066 (2-243)

NIIN: 00-579-7066
In stock
NSN: 5331-00-579-7066
FSC Code: 5331
MPN: 2243

5331-00-947-4235 (2-242S418-6)

NIIN: 00-947-4235
In stock
NSN: 5331-00-947-4235
FSC Code: 5331
MPN: 2242S4186

5331-00-080-0706 (2-243)

NIIN: 00-080-0706
In stock
NSN: 5331-00-080-0706
FSC Code: 5331
MPN: 2243

5331-00-043-4614 (2243881PC3)

NIIN: 00-043-4614
In stock
NSN: 5331-00-043-4614
FSC Code: 5331
MPN: 2243881PC3

5331-00-445-8747 (2-243E515-8)

NIIN: 00-445-8747
In stock
NSN: 5331-00-445-8747
FSC Code: 5331
MPN: 2243E5158

5331-00-477-2435 (2-243N693-75)

NIIN: 00-477-2435
In stock
NSN: 5331-00-477-2435
FSC Code: 5331
MPN: 2243N69375

5331-01-129-3149 (2-243L1223-60)

NIIN: 01-129-3149
In stock
NSN: 5331-01-129-3149
FSC Code: 5331
MPN: 2243L122360

5331-00-947-4234 (2-243S317-60)

NIIN: 00-947-4234
In stock
NSN: 5331-00-947-4234
FSC Code: 5331
MPN: 2243S31760

5331-01-131-2966 (2-244)

NIIN: 01-131-2966
In stock
NSN: 5331-01-131-2966
FSC Code: 5331
MPN: 2244

5331-00-599-0395 (2-243S467-8)

NIIN: 00-599-0395
In stock
NSN: 5331-00-599-0395
FSC Code: 5331
MPN: 2243S4678

5331-01-307-5896 (2244382-13)

NIIN: 01-307-5896
In stock
NSN: 5331-01-307-5896
FSC Code: 5331
MPN: 224438213

5331-00-956-3100 (2244382ITEM139)

NIIN: 00-956-3100
In stock
NSN: 5331-00-956-3100
FSC Code: 5331
MPN: 2244382ITEM139

5331-00-804-4224 (2-244)

NIIN: 00-804-4224
In stock
NSN: 5331-00-804-4224
FSC Code: 5331
MPN: 2244