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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.

5331-01-132-8222 (M25988/3-129)

NIIN: 01-132-8222
In stock
NSN: 5331-01-132-8222
FSC Code: 5331
MPN: M259883129

5331-01-465-1902 (865869-01)

NIIN: 01-465-1902
In stock
NSN: 5331-01-465-1902
FSC Code: 5331
MPN: 86586901

5331-01-132-8223 (M25988/3-121)

NIIN: 01-132-8223
In stock
NSN: 5331-01-132-8223
FSC Code: 5331
MPN: M259883121

5331-01-130-9659 (M25988/3-040)

NIIN: 01-130-9659
In stock
NSN: 5331-01-130-9659
FSC Code: 5331
MPN: M259883040

5331-01-282-8209 (M25988/2-910)

NIIN: 01-282-8209
In stock
NSN: 5331-01-282-8209
FSC Code: 5331
MPN: M259882910

5331-01-331-9712 (M25988/2-907)

NIIN: 01-331-9712
In stock
NSN: 5331-01-331-9712
FSC Code: 5331
MPN: M259882907

5331-01-079-6579 (M25988/2-914)

NIIN: 01-079-6579
In stock
NSN: 5331-01-079-6579
FSC Code: 5331
MPN: M259882914

5331-00-421-9429 (M25988/2-237)

NIIN: 00-421-9429
In stock
NSN: 5331-00-421-9429
FSC Code: 5331
MPN: M259882237

5331-01-324-7204 (M25988/2-924)

NIIN: 01-324-7204
In stock
NSN: 5331-01-324-7204
FSC Code: 5331
MPN: M259882924

5331-01-083-6506 (M25988/2-928)

NIIN: 01-083-6506
In stock
NSN: 5331-01-083-6506
FSC Code: 5331
MPN: M259882928

5331-01-080-2998 (M25988/2-918)

NIIN: 01-080-2998
In stock
NSN: 5331-01-080-2998
FSC Code: 5331
MPN: M259882918

5331-01-087-1198 (M25988/2-905)

NIIN: 01-087-1198
In stock
NSN: 5331-01-087-1198
FSC Code: 5331
MPN: M259882905

5331-01-083-4126 (M25988/2-912)

NIIN: 01-083-4126
In stock
NSN: 5331-01-083-4126
FSC Code: 5331
MPN: M259882912

5331-00-240-3823 (M25988/2-279)

NIIN: 00-240-3823
In stock
NSN: 5331-00-240-3823
FSC Code: 5331
MPN: M259882279

5331-00-007-0102 (M25988/2-227)

NIIN: 00-007-0102
In stock
NSN: 5331-00-007-0102
FSC Code: 5331
MPN: M259882227

5331-01-322-8785 (M25988/2-233)

NIIN: 01-322-8785
In stock
NSN: 5331-01-322-8785
FSC Code: 5331
MPN: M259882233

5331-00-421-9431 (M25988/2-231)

NIIN: 00-421-9431
In stock
NSN: 5331-00-421-9431
FSC Code: 5331
MPN: M259882231

5331-00-413-2914 (M25988/2-233)

NIIN: 00-413-2914
In stock
NSN: 5331-00-413-2914
FSC Code: 5331
MPN: M259882233

5331-01-133-5857 (M25988/2-226)

NIIN: 01-133-5857
In stock
NSN: 5331-01-133-5857
FSC Code: 5331
MPN: M259882226

5331-00-179-9444 (M25988/2-204)

NIIN: 00-179-9444
In stock
NSN: 5331-00-179-9444
FSC Code: 5331
MPN: M259882204

5331-01-281-6512 (M25988/2-158)

NIIN: 01-281-6512
In stock
NSN: 5331-01-281-6512
FSC Code: 5331
MPN: M259882158

5331-01-282-5693 (M25988/2-218)

NIIN: 01-282-5693
In stock
NSN: 5331-01-282-5693
FSC Code: 5331
MPN: M259882218

5331-00-401-4801 (M25988/2-167)

NIIN: 00-401-4801
In stock
NSN: 5331-00-401-4801
FSC Code: 5331
MPN: M259882167

5331-01-133-5856 (M25988/2-222)

NIIN: 01-133-5856
In stock
NSN: 5331-01-133-5856
FSC Code: 5331
MPN: M259882222

5331-00-191-3558 (M25988/2-165)

NIIN: 00-191-3558
In stock
NSN: 5331-00-191-3558
FSC Code: 5331
MPN: M259882165

5331-00-419-0540 (M25988/2-153)

NIIN: 00-419-0540
In stock
NSN: 5331-00-419-0540
FSC Code: 5331
MPN: M259882153

5331-01-087-8826 (M25988/2-210)

NIIN: 01-087-8826
In stock
NSN: 5331-01-087-8826
FSC Code: 5331
MPN: M259882210

5331-01-079-7308 (M25988/2-154)

NIIN: 01-079-7308
In stock
NSN: 5331-01-079-7308
FSC Code: 5331
MPN: M259882154

5331-00-231-7702 (M25988/2-146)

NIIN: 00-231-7702
In stock
NSN: 5331-00-231-7702
FSC Code: 5331
MPN: M259882146

5331-01-282-3405 (M25988/2-135)

NIIN: 01-282-3405
In stock
NSN: 5331-01-282-3405
FSC Code: 5331
MPN: M259882135

5331-01-325-6041 (M25988/2-139)

NIIN: 01-325-6041
In stock
NSN: 5331-01-325-6041
FSC Code: 5331
MPN: M259882139

5331-00-404-1475 (M25988/2-141)

NIIN: 00-404-1475
In stock
NSN: 5331-00-404-1475
FSC Code: 5331
MPN: M259882141

5331-00-340-5787 (M25988/2-140)

NIIN: 00-340-5787
In stock
NSN: 5331-00-340-5787
FSC Code: 5331
MPN: M259882140

5331-00-411-3902 (M25988/2-143)

NIIN: 00-411-3902
In stock
NSN: 5331-00-411-3902
FSC Code: 5331
MPN: M259882143

5331-01-321-6686 (M25988/2-145)

NIIN: 01-321-6686
In stock
NSN: 5331-01-321-6686
FSC Code: 5331
MPN: M259882145

5331-01-079-7301 (M25988/2-110)

NIIN: 01-079-7301
In stock
NSN: 5331-01-079-7301
FSC Code: 5331
MPN: M259882110

5331-01-080-5008 (M25988/2-131)

NIIN: 01-080-5008
In stock
NSN: 5331-01-080-5008
FSC Code: 5331
MPN: M259882131

5331-00-031-2915 (M25988/2-125)

NIIN: 00-031-2915
In stock
NSN: 5331-00-031-2915
FSC Code: 5331
MPN: M259882125

5331-01-085-8391 (M25988/2-122)

NIIN: 01-085-8391
In stock
NSN: 5331-01-085-8391
FSC Code: 5331
MPN: M259882122

5331-01-134-3299 (M25988/2-130)

NIIN: 01-134-3299
In stock
NSN: 5331-01-134-3299
FSC Code: 5331
MPN: M259882130

5331-01-326-9507 (M25988/2-129)

NIIN: 01-326-9507
In stock
NSN: 5331-01-326-9507
FSC Code: 5331
MPN: M259882129

5331-01-134-0767 (M25988/2-126)

NIIN: 01-134-0767
In stock
NSN: 5331-01-134-0767
FSC Code: 5331
MPN: M259882126

5331-01-079-7307 (M25988/2-109)

NIIN: 01-079-7307
In stock
NSN: 5331-01-079-7307
FSC Code: 5331
MPN: M259882109

5331-01-116-8116 (M25988/2-105)

NIIN: 01-116-8116
In stock
NSN: 5331-01-116-8116
FSC Code: 5331
MPN: M259882105

5331-00-401-4905 (M25988/2-112)

NIIN: 00-401-4905
In stock
NSN: 5331-00-401-4905
FSC Code: 5331
MPN: M259882112

5331-01-136-6139 (M25988/2-118)

NIIN: 01-136-6139
In stock
NSN: 5331-01-136-6139
FSC Code: 5331
MPN: M259882118

5331-01-079-7306 (M25988/2-031)

NIIN: 01-079-7306
In stock
NSN: 5331-01-079-7306
FSC Code: 5331
MPN: M259882031

5331-00-184-4064 (M25988/2-030)

NIIN: 00-184-4064
In stock
NSN: 5331-00-184-4064
FSC Code: 5331
MPN: M259882030