Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-01-443-5721 (64-0717-71)

NIIN: 01-443-5721
In stock
NSN: 5331-01-443-5721
FSC Code: 5331
MPN: 64071771

5331-01-443-5722 (64-0719-71)

NIIN: 01-443-5722
In stock
NSN: 5331-01-443-5722
FSC Code: 5331
MPN: 64071971

5331-00-333-8121 (C61905)

NIIN: 00-333-8121
In stock
NSN: 5331-00-333-8121
FSC Code: 5331
MPN: C61905

5331-01-080-9002 (C-604-K1)

NIIN: 01-080-9002
In stock
NSN: 5331-01-080-9002
FSC Code: 5331
MPN: C604K1

5331-01-211-1335 (C-60)

NIIN: 01-211-1335
In stock
NSN: 5331-01-211-1335
FSC Code: 5331
MPN: C60

5331-12-310-8909 (700429063000)

NIIN: 12-310-8909
In stock
NSN: 5331-12-310-8909
FSC Code: 5331
MPN: 700429063000

5331-01-519-0274 (63994-08)

NIIN: 01-519-0274
In stock
NSN: 5331-01-519-0274
FSC Code: 5331
MPN: 6399408

5331-01-530-9796 (G547-0002-6397304-15D4)

NIIN: 01-530-9796
In stock
NSN: 5331-01-530-9796
FSC Code: 5331
MPN: G5470002639730415D4

5331-01-531-4995 (G547-0003-6397304-27D4)

NIIN: 01-531-4995
In stock
NSN: 5331-01-531-4995
FSC Code: 5331
MPN: G5470003639730427D4

5331-01-530-9795 (G547-0002-6397304-12D4)

NIIN: 01-530-9795
In stock
NSN: 5331-01-530-9795
FSC Code: 5331
MPN: G5470002639730412D4

5331-01-541-1856 (6395074-1D4)

NIIN: 01-541-1856
In stock
NSN: 5331-01-541-1856
FSC Code: 5331
MPN: 63950741D4

5331-01-506-5297 (6392979-1)

NIIN: 01-506-5297
In stock
NSN: 5331-01-506-5297
FSC Code: 5331
MPN: 63929791

5331-01-541-1857 (M83248/1-275D4)

NIIN: 01-541-1857
In stock
NSN: 5331-01-541-1857
FSC Code: 5331
MPN: M832481275D4

5331-01-506-5309 (6392979-2)

NIIN: 01-506-5309
In stock
NSN: 5331-01-506-5309
FSC Code: 5331
MPN: 63929792

5331-01-542-4587 (M83248/1-225D4)

NIIN: 01-542-4587
In stock
NSN: 5331-01-542-4587
FSC Code: 5331
MPN: M832481225D4

5331-01-541-1881 (M83248/1-227D4)

NIIN: 01-541-1881
In stock
NSN: 5331-01-541-1881
FSC Code: 5331
MPN: M832481227D4

5331-01-542-4597 (M83248/1-221D4)

NIIN: 01-542-4597
In stock
NSN: 5331-01-542-4597
FSC Code: 5331
MPN: M832481221D4

5331-01-458-8027 (MIL-R-83248/2)

NIIN: 01-458-8027
In stock
NSN: 5331-01-458-8027
FSC Code: 5331
MPN: MILR832482

5331-01-540-0879 (M83248/2-916D0)

NIIN: 01-540-0879
In stock
NSN: 5331-01-540-0879
FSC Code: 5331
MPN: M832482916D0

5331-01-194-8974 (C500225-1)

NIIN: 01-194-8974
In stock
NSN: 5331-01-194-8974
FSC Code: 5331
MPN: C5002251

5331-01-516-4373 (6386272-003)

NIIN: 01-516-4373
In stock
NSN: 5331-01-516-4373
FSC Code: 5331
MPN: 6386272003

5331-01-516-4286 (6386272-001)

NIIN: 01-516-4286
In stock
NSN: 5331-01-516-4286
FSC Code: 5331
MPN: 6386272001

5331-01-516-4288 (6386272-004)

NIIN: 01-516-4288
In stock
NSN: 5331-01-516-4288
FSC Code: 5331
MPN: 6386272004

5331-01-516-4372 (638272-002)

NIIN: 01-516-4372
In stock
NSN: 5331-01-516-4372
FSC Code: 5331
MPN: 638272002

5331-01-342-1653 (NAS1611-119CP)

NIIN: 01-342-1653
In stock
NSN: 5331-01-342-1653
FSC Code: 5331
MPN: NAS1611119CP

5331-01-451-2234 (NAS1611-125CP)

NIIN: 01-451-2234
In stock
NSN: 5331-01-451-2234
FSC Code: 5331
MPN: NAS1611125CP

5331-01-285-1597 (C4168-49FHS-150)

NIIN: 01-285-1597
In stock
NSN: 5331-01-285-1597
FSC Code: 5331
MPN: C416849FHS150

5331-00-582-3903 (C41512-5ISSUE3)

NIIN: 00-582-3903
In stock
NSN: 5331-00-582-3903
FSC Code: 5331
MPN: C415125ISSUE3

5331-01-312-7173 (C-4050D-D-16)

NIIN: 01-312-7173
In stock
NSN: 5331-01-312-7173
FSC Code: 5331
MPN: C4050DD16

5331-01-091-7778 (C4007-513-034)

NIIN: 01-091-7778
In stock
NSN: 5331-01-091-7778
FSC Code: 5331
MPN: C4007513034

5331-01-091-7779 (C4008-514-034)

NIIN: 01-091-7779
In stock
NSN: 5331-01-091-7779
FSC Code: 5331
MPN: C4008514034

5331-01-192-2121 (C4)

NIIN: 01-192-2121
In stock
NSN: 5331-01-192-2121
FSC Code: 5331
MPN: C4

5331-01-414-0688 (63597-174C)

NIIN: 01-414-0688
In stock
NSN: 5331-01-414-0688
FSC Code: 5331
MPN: 63597174C

5331-00-505-4039 (C3648SK)

NIIN: 00-505-4039
In stock
NSN: 5331-00-505-4039
FSC Code: 5331
MPN: C3648SK

5331-00-420-1453 (C356019549)

NIIN: 00-420-1453
In stock
NSN: 5331-00-420-1453
FSC Code: 5331
MPN: C356019549

5331-00-020-0250 (C356019548)

NIIN: 00-020-0250
In stock
NSN: 5331-00-020-0250
FSC Code: 5331
MPN: C356019548

5331-00-232-0991 (C356017000)

NIIN: 00-232-0991
In stock
NSN: 5331-00-232-0991
FSC Code: 5331
MPN: C356017000

5331-00-463-5464 (C356007065)

NIIN: 00-463-5464
In stock
NSN: 5331-00-463-5464
FSC Code: 5331
MPN: C356007065

5331-01-544-7038 (6355-0127)

NIIN: 01-544-7038
In stock
NSN: 5331-01-544-7038
FSC Code: 5331
MPN: 63550127

5331-01-387-8843 (14 6350996ITEM14)

NIIN: 01-387-8843
In stock
NSN: 5331-01-387-8843
FSC Code: 5331
MPN: 146350996ITEM14

5331-00-955-9645 (C-3317-229)

NIIN: 00-955-9645
In stock
NSN: 5331-00-955-9645
FSC Code: 5331
MPN: C3317229

5331-00-955-9643 (C-3317-343-1)

NIIN: 00-955-9643
In stock
NSN: 5331-00-955-9643
FSC Code: 5331
MPN: C33173431

5331-01-264-5923 (C321-606)

NIIN: 01-264-5923
In stock
NSN: 5331-01-264-5923
FSC Code: 5331
MPN: C321606

5331-01-362-0690 (K-924-L-1.25IN)

NIIN: 01-362-0690
In stock
NSN: 5331-01-362-0690
FSC Code: 5331
MPN: K924L125IN

5331-01-382-4348 (6-349)

NIIN: 01-382-4348
In stock
NSN: 5331-01-382-4348
FSC Code: 5331
MPN: 6349

5331-01-381-2810 (634733)

NIIN: 01-381-2810
In stock
NSN: 5331-01-381-2810
FSC Code: 5331
MPN: 634733

5331-00-580-5603 (C3186-7)

NIIN: 00-580-5603
In stock
NSN: 5331-00-580-5603
FSC Code: 5331
MPN: C31867

5331-01-283-1586 (C3150)

NIIN: 01-283-1586
In stock
NSN: 5331-01-283-1586
FSC Code: 5331
MPN: C3150