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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.

5331-01-475-6900 (AA55801-003-F-5)

NIIN: 01-475-6900
In stock
NSN: 5331-01-475-6900
FSC Code: 5331
MPN: AA55801003F5

5331-01-215-5130 (N02-039485-00K)

NIIN: 01-215-5130
In stock
NSN: 5331-01-215-5130
FSC Code: 5331
MPN: N0203948500K

5331-01-282-9268 (N02507)

NIIN: 01-282-9268
In stock
NSN: 5331-01-282-9268
FSC Code: 5331
MPN: N02507

5331-01-304-2363 (N02-103601)

NIIN: 01-304-2363
In stock
NSN: 5331-01-304-2363
FSC Code: 5331
MPN: N02103601

5331-01-233-3247 (N)

NIIN: 01-233-3247
In stock
NSN: 5331-01-233-3247
FSC Code: 5331
MPN: N

5331-01-199-3358 (MX-230764)

NIIN: 01-199-3358
In stock
NSN: 5331-01-199-3358
FSC Code: 5331
MPN: MX230764

5331-01-296-1928 (MX-230759)

NIIN: 01-296-1928
In stock
NSN: 5331-01-296-1928
FSC Code: 5331
MPN: MX230759

5331-01-071-7922 (MW15)

NIIN: 01-071-7922
In stock
NSN: 5331-01-071-7922
FSC Code: 5331
MPN: MW15

5331-01-394-0460 (AA-2010-32)

NIIN: 01-394-0460
In stock
NSN: 5331-01-394-0460
FSC Code: 5331
MPN: AA201032

5331-01-288-5041 (MV-61F-20-E-24A)

NIIN: 01-288-5041
In stock
NSN: 5331-01-288-5041
FSC Code: 5331
MPN: MV61F20E24A

5331-01-288-5042 (MV-61F-20-E-24A)

NIIN: 01-288-5042
In stock
NSN: 5331-01-288-5042
FSC Code: 5331
MPN: MV61F20E24A

5331-01-272-9881 (MV-21W5)

NIIN: 01-272-9881
In stock
NSN: 5331-01-272-9881
FSC Code: 5331
MPN: MV21W5

5331-01-170-8673 (MV-200-8620-11)

NIIN: 01-170-8673
In stock
NSN: 5331-01-170-8673
FSC Code: 5331
MPN: MV200862011

5331-01-292-0178 (MV-21F2.5)

NIIN: 01-292-0178
In stock
NSN: 5331-01-292-0178
FSC Code: 5331
MPN: MV21F25

5331-01-170-8672 (MV-200-8620-11)

NIIN: 01-170-8672
In stock
NSN: 5331-01-170-8672
FSC Code: 5331
MPN: MV200862011

5331-01-170-8671 (MV-200-8620-11)

NIIN: 01-170-8671
In stock
NSN: 5331-01-170-8671
FSC Code: 5331
MPN: MV200862011

5331-01-033-2716 (MV-200-19000-11)

NIIN: 01-033-2716
In stock
NSN: 5331-01-033-2716
FSC Code: 5331
MPN: MV2001900011

5331-01-033-2715 (MV-200-19000-11)

NIIN: 01-033-2715
In stock
NSN: 5331-01-033-2715
FSC Code: 5331
MPN: MV2001900011

5331-01-239-8643 (MV-11F2)

NIIN: 01-239-8643
In stock
NSN: 5331-01-239-8643
FSC Code: 5331
MPN: MV11F2

5331-01-239-3296 (MV-11W)

NIIN: 01-239-3296
In stock
NSN: 5331-01-239-3296
FSC Code: 5331
MPN: MV11W

5331-01-422-6586 (RRC-4004-1)

NIIN: 01-422-6586
In stock
NSN: 5331-01-422-6586
FSC Code: 5331
MPN: RRC40041

5331-01-419-4441 (AA-1114)

NIIN: 01-419-4441
In stock
NSN: 5331-01-419-4441
FSC Code: 5331
MPN: AA1114

5331-01-415-9649 (AA-1006-5.1)

NIIN: 01-415-9649
In stock
NSN: 5331-01-415-9649
FSC Code: 5331
MPN: AA100651

5331-01-514-5624 (AFS0200-163-000)

NIIN: 01-514-5624
In stock
NSN: 5331-01-514-5624
FSC Code: 5331
MPN: AFS0200163000

5331-01-514-5619 (AFS0200-345-000)

NIIN: 01-514-5619
In stock
NSN: 5331-01-514-5619
FSC Code: 5331
MPN: AFS0200345000

5331-01-399-1668 (A970X010)

NIIN: 01-399-1668
In stock
NSN: 5331-01-399-1668
FSC Code: 5331
MPN: A970X010

5331-01-399-1666 (A970X011)

NIIN: 01-399-1666
In stock
NSN: 5331-01-399-1666
FSC Code: 5331
MPN: A970X011

5331-01-533-6537 (A922902-00161)

NIIN: 01-533-6537
In stock
NSN: 5331-01-533-6537
FSC Code: 5331
MPN: A92290200161

5331-01-201-4608 (MSM127/2/19)

NIIN: 01-201-4608
In stock
NSN: 5331-01-201-4608
FSC Code: 5331
MPN: MSM127219

5331-01-201-4611 (MSM127/2/27)

NIIN: 01-201-4611
In stock
NSN: 5331-01-201-4611
FSC Code: 5331
MPN: MSM127227

5331-01-437-3184 (A-90080-162)

NIIN: 01-437-3184
In stock
NSN: 5331-01-437-3184
FSC Code: 5331
MPN: A90080162

5331-01-539-6442 (A902199-00772)

NIIN: 01-539-6442
In stock
NSN: 5331-01-539-6442
FSC Code: 5331
MPN: A90219900772

5331-01-006-3940 (MS9970-428)

NIIN: 01-006-3940
In stock
NSN: 5331-01-006-3940
FSC Code: 5331
MPN: MS9970428

5331-01-437-3197 (A-90081-254)

NIIN: 01-437-3197
In stock
NSN: 5331-01-437-3197
FSC Code: 5331
MPN: A90081254

5331-01-006-3941 (MS9970-032)

NIIN: 01-006-3941
In stock
NSN: 5331-01-006-3941
FSC Code: 5331
MPN: MS9970032

5331-01-215-5393 (MS9966-14)

NIIN: 01-215-5393
In stock
NSN: 5331-01-215-5393
FSC Code: 5331
MPN: MS996614

5331-01-248-3255 (MS9772-019)

NIIN: 01-248-3255
In stock
NSN: 5331-01-248-3255
FSC Code: 5331
MPN: MS9772019

5331-01-331-5373 (MS9955-013)

NIIN: 01-331-5373
In stock
NSN: 5331-01-331-5373
FSC Code: 5331
MPN: MS9955013

5331-01-321-0566 (MS9955-130)

NIIN: 01-321-0566
In stock
NSN: 5331-01-321-0566
FSC Code: 5331
MPN: MS9955130

5331-01-212-0122 (MS9770-016)

NIIN: 01-212-0122
In stock
NSN: 5331-01-212-0122
FSC Code: 5331
MPN: MS9770016

5331-00-508-6122 (MS9771-08)

NIIN: 00-508-6122
In stock
NSN: 5331-00-508-6122
FSC Code: 5331
MPN: MS977108

5331-01-113-9855 (MS9770-020)

NIIN: 01-113-9855
In stock
NSN: 5331-01-113-9855
FSC Code: 5331
MPN: MS9770020

5331-01-143-8261 (MS9770-010)

NIIN: 01-143-8261
In stock
NSN: 5331-01-143-8261
FSC Code: 5331
MPN: MS9770010

5331-01-155-5256 (MS9388-276)

NIIN: 01-155-5256
In stock
NSN: 5331-01-155-5256
FSC Code: 5331
MPN: MS9388276

5331-01-288-1821 (MS9388-253)

NIIN: 01-288-1821
In stock
NSN: 5331-01-288-1821
FSC Code: 5331
MPN: MS9388253

5331-00-182-3687 (MS9388-135)

NIIN: 00-182-3687
In stock
NSN: 5331-00-182-3687
FSC Code: 5331
MPN: MS9388135

5331-01-106-9570 (MS9388-133)

NIIN: 01-106-9570
In stock
NSN: 5331-01-106-9570
FSC Code: 5331
MPN: MS9388133

5331-01-117-0703 (MS9388-157)

NIIN: 01-117-0703
In stock
NSN: 5331-01-117-0703
FSC Code: 5331
MPN: MS9388157