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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.

5331-01-288-8977 (23-01-.75IN)

NIIN: 01-288-8977
In stock
NSN: 5331-01-288-8977
FSC Code: 5331
MPN: 230175IN

5331-99-362-6907 (002DK-137)

NIIN: 99-362-6907
In stock
NSN: 5331-99-362-6907
FSC Code: 5331
MPN: 002DK137

5331-01-372-5307 (0020-H-MG0300)

NIIN: 01-372-5307
In stock
NSN: 5331-01-372-5307
FSC Code: 5331
MPN: 0020HMG0300

5331-01-571-8546 (84020FINDNO.334IN)

NIIN: 01-571-8546
In stock
NSN: 5331-01-571-8546
FSC Code: 5331
MPN: 84020FINDNO334IN

5331-01-555-0205 (003054G17G-1)

NIIN: 01-555-0205
In stock
NSN: 5331-01-555-0205
FSC Code: 5331
MPN: 003054G17G1

5331-01-555-0202 (003054G47G-1)

NIIN: 01-555-0202
In stock
NSN: 5331-01-555-0202
FSC Code: 5331
MPN: 003054G47G1

5331-00-901-5095 (2301843-6)

NIIN: 00-901-5095
In stock
NSN: 5331-00-901-5095
FSC Code: 5331
MPN: 23018436

5331-01-452-2398 (HLT560JG-8-14)

NIIN: 01-452-2398
In stock
NSN: 5331-01-452-2398
FSC Code: 5331
MPN: HLT560JG814

5331-01-452-2502 (00-3084-03)

NIIN: 01-452-2502
In stock
NSN: 5331-01-452-2502
FSC Code: 5331
MPN: 00308403

5331-00-432-2893 (23-019)

NIIN: 00-432-2893
In stock
NSN: 5331-00-432-2893
FSC Code: 5331
MPN: 23019

5331-01-274-4328 (23-019)

NIIN: 01-274-4328
In stock
NSN: 5331-01-274-4328
FSC Code: 5331
MPN: 23019

5331-00-924-5559 (230-2268PC6)

NIIN: 00-924-5559
In stock
NSN: 5331-00-924-5559
FSC Code: 5331
MPN: 2302268PC6

5331-99-000-3104 (BS4518-0031-16)

NIIN: 99-000-3104
In stock
NSN: 5331-99-000-3104
FSC Code: 5331
MPN: BS4518003116

5331-00-506-3384 (2303-09-50DET5)

NIIN: 00-506-3384
In stock
NSN: 5331-00-506-3384
FSC Code: 5331
MPN: 23030950DET5

5331-01-494-8102 (CGR1601-0125-11)

NIIN: 01-494-8102
In stock
NSN: 5331-01-494-8102
FSC Code: 5331
MPN: CGR1601012511

5331-01-318-8187 (2305-09)

NIIN: 01-318-8187
In stock
NSN: 5331-01-318-8187
FSC Code: 5331
MPN: 230509

5331-01-281-3408 (2305-26)

NIIN: 01-281-3408
In stock
NSN: 5331-01-281-3408
FSC Code: 5331
MPN: 230526

5331-01-280-9384 (2305-32)

NIIN: 01-280-9384
In stock
NSN: 5331-01-280-9384
FSC Code: 5331
MPN: 230532

5331-01-241-6411 (2305-13)

NIIN: 01-241-6411
In stock
NSN: 5331-01-241-6411
FSC Code: 5331
MPN: 230513

5331-01-288-8982 (2305-37)

NIIN: 01-288-8982
In stock
NSN: 5331-01-288-8982
FSC Code: 5331
MPN: 230537

5331-01-154-9451 (2305-29)

NIIN: 01-154-9451
In stock
NSN: 5331-01-154-9451
FSC Code: 5331
MPN: 230529

5331-00-237-6969 (2306-14)

NIIN: 00-237-6969
In stock
NSN: 5331-00-237-6969
FSC Code: 5331
MPN: 230614

5331-01-268-2687 (2306-18)

NIIN: 01-268-2687
In stock
NSN: 5331-01-268-2687
FSC Code: 5331
MPN: 230618

5331-01-223-9250 (2306-36)

NIIN: 01-223-9250
In stock
NSN: 5331-01-223-9250
FSC Code: 5331
MPN: 230636

5331-12-136-8574 (0R11-3X2-4-80NBR709)

NIIN: 12-136-8574
In stock
NSN: 5331-12-136-8574
FSC Code: 5331
MPN: 0R113X2480NBR709

5331-01-556-3385 (0038G3083-2)

NIIN: 01-556-3385
In stock
NSN: 5331-01-556-3385
FSC Code: 5331
MPN: 0038G30832

5331-12-132-9483 (HDW5-3000-97-004P0S221)

NIIN: 12-132-9483
In stock
NSN: 5331-12-132-9483
FSC Code: 5331
MPN: HDW5300097004P0S221

5331-12-141-5115 (OR105X3-72NBR/872)

NIIN: 12-141-5115
In stock
NSN: 5331-12-141-5115
FSC Code: 5331
MPN: OR105X372NBR872

5331-12-130-9183 (0R7-3X2-4-70NBR769)

NIIN: 12-130-9183
In stock
NSN: 5331-12-130-9183
FSC Code: 5331
MPN: 0R73X2470NBR769

5331-12-125-3626 (OR30X3-72NBR/872)

NIIN: 12-125-3626
In stock
NSN: 5331-12-125-3626
FSC Code: 5331
MPN: OR30X372NBR872

5331-12-140-8489 (LNA82-114S0CD163-05003-4625)

NIIN: 12-140-8489
In stock
NSN: 5331-12-140-8489
FSC Code: 5331
MPN: LNA82114S0CD163050034625

5331-12-132-9696 (0R26-2-3-70NBR769)

NIIN: 12-132-9696
In stock
NSN: 5331-12-132-9696
FSC Code: 5331
MPN: 0R262370NBR769

5331-12-146-1844 (LON-103A10X3-NBR)

NIIN: 12-146-1844
In stock
NSN: 5331-12-146-1844
FSC Code: 5331
MPN: LON103A10X3NBR

5331-12-151-4577 (2982613EY8751-13)

NIIN: 12-151-4577
In stock
NSN: 5331-12-151-4577
FSC Code: 5331
MPN: 2982613EY875113

5331-01-494-7506 (CGR1601-0125-13)

NIIN: 01-494-7506
In stock
NSN: 5331-01-494-7506
FSC Code: 5331
MPN: CGR1601012513

5331-12-149-8690 (23307-208661.32.0)

NIIN: 12-149-8690
In stock
NSN: 5331-12-149-8690
FSC Code: 5331
MPN: 23307208661320

5331-00-987-9305 (230-7507)

NIIN: 00-987-9305
In stock
NSN: 5331-00-987-9305
FSC Code: 5331
MPN: 2307507

5331-01-334-0372 (23087R1)

NIIN: 01-334-0372
In stock
NSN: 5331-01-334-0372
FSC Code: 5331
MPN: 23087R1

5331-01-416-9387 (00402-000)

NIIN: 01-416-9387
In stock
NSN: 5331-01-416-9387
FSC Code: 5331
MPN: 00402000

5331-12-135-5696 (OR55X4-72NBR/872)

NIIN: 12-135-5696
In stock
NSN: 5331-12-135-5696
FSC Code: 5331
MPN: OR55X472NBR872

5331-01-455-0940 (00655A770-261)

NIIN: 01-455-0940
In stock
NSN: 5331-01-455-0940
FSC Code: 5331
MPN: 00655A770261

5331-01-416-9388 (00403-000)

NIIN: 01-416-9388
In stock
NSN: 5331-01-416-9388
FSC Code: 5331
MPN: 00403000

5331-01-226-9508 (230-927-019-730-000)

NIIN: 01-226-9508
In stock
NSN: 5331-01-226-9508
FSC Code: 5331
MPN: 230927019730000

5331-01-296-6447 (230-927-111-730-000)

NIIN: 01-296-6447
In stock
NSN: 5331-01-296-6447
FSC Code: 5331
MPN: 230927111730000

5331-01-273-1646 (230-927-010-730-001)

NIIN: 01-273-1646
In stock
NSN: 5331-01-273-1646
FSC Code: 5331
MPN: 230927010730001

5331-01-226-9509 (230-927-014-730-000)

NIIN: 01-226-9509
In stock
NSN: 5331-01-226-9509
FSC Code: 5331
MPN: 230927014730000

5331-01-090-0911 (230-927-122-730-000)

NIIN: 01-090-0911
In stock
NSN: 5331-01-090-0911
FSC Code: 5331
MPN: 230927122730000

5331-01-307-4222 (230-927-112-730-000)

NIIN: 01-307-4222
In stock
NSN: 5331-01-307-4222
FSC Code: 5331
MPN: 230927112730000