Skip to content
News Industries All Catagories 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.

5331-01-197-3209 (R50894)

NIIN: 01-197-3209
In stock
NSN: 5331-01-197-3209
FSC Code: 5331
MPN: R50894

5331-01-318-1982 (R50405)

NIIN: 01-318-1982
In stock
NSN: 5331-01-318-1982
FSC Code: 5331
MPN: R50405

5331-00-056-9571 (R495R)

NIIN: 00-056-9571
In stock
NSN: 5331-00-056-9571
FSC Code: 5331
MPN: R495R

5331-00-169-9954 (R50)

NIIN: 00-169-9954
In stock
NSN: 5331-00-169-9954
FSC Code: 5331
MPN: R50

5331-01-138-5271 (R4800-210)

NIIN: 01-138-5271
In stock
NSN: 5331-01-138-5271
FSC Code: 5331
MPN: R4800210

5331-00-279-9461 (R4879-137X)

NIIN: 00-279-9461
In stock
NSN: 5331-00-279-9461
FSC Code: 5331
MPN: R4879137X

5331-01-265-8813 (R49388-904G)

NIIN: 01-265-8813
In stock
NSN: 5331-01-265-8813
FSC Code: 5331
MPN: R49388904G

5331-01-195-1504 (R47144)

NIIN: 01-195-1504
In stock
NSN: 5331-01-195-1504
FSC Code: 5331
MPN: R47144

5331-00-056-9576 (R460R)

NIIN: 00-056-9576
In stock
NSN: 5331-00-056-9576
FSC Code: 5331
MPN: R460R

5331-00-491-1589 (R459R)

NIIN: 00-491-1589
In stock
NSN: 5331-00-491-1589
FSC Code: 5331
MPN: R459R

5331-99-133-8684 (BS1806-012)

NIIN: 99-133-8684
In stock
NSN: 5331-99-133-8684
FSC Code: 5331
MPN: BS1806012

5331-99-957-9519 (BL/D8164)

NIIN: 99-957-9519
In stock
NSN: 5331-99-957-9519
FSC Code: 5331
MPN: BLD8164

5331-99-212-6061 (BS1806-120)

NIIN: 99-212-6061
In stock
NSN: 5331-99-212-6061
FSC Code: 5331
MPN: BS1806120

5331-99-870-1599 (BS1806-112)

NIIN: 99-870-1599
In stock
NSN: 5331-99-870-1599
FSC Code: 5331
MPN: BS1806112

5331-99-488-7138 (BS1806-022)

NIIN: 99-488-7138
In stock
NSN: 5331-99-488-7138
FSC Code: 5331
MPN: BS1806022

5331-99-666-8430 (BS1806-015)

NIIN: 99-666-8430
In stock
NSN: 5331-99-666-8430
FSC Code: 5331
MPN: BS1806015

5331-99-730-0583 (BL/D9636)

NIIN: 99-730-0583
In stock
NSN: 5331-99-730-0583
FSC Code: 5331
MPN: BLD9636

5331-01-279-0348 (R43805)

NIIN: 01-279-0348
In stock
NSN: 5331-01-279-0348
FSC Code: 5331
MPN: R43805

5331-99-212-6062 (BL/D4819)

NIIN: 99-212-6062
In stock
NSN: 5331-99-212-6062
FSC Code: 5331
MPN: BLD4819

5331-01-336-8772 (R44180)

NIIN: 01-336-8772
In stock
NSN: 5331-01-336-8772
FSC Code: 5331
MPN: R44180

5331-01-312-3752 (R44181)

NIIN: 01-312-3752
In stock
NSN: 5331-01-312-3752
FSC Code: 5331
MPN: R44181

5331-01-513-6299 (W006001-011)

NIIN: 01-513-6299
In stock
NSN: 5331-01-513-6299
FSC Code: 5331
MPN: W006001011

5331-01-242-4135 (R4187)

NIIN: 01-242-4135
In stock
NSN: 5331-01-242-4135
FSC Code: 5331
MPN: R4187

5331-01-453-6522 (BK199)

NIIN: 01-453-6522
In stock
NSN: 5331-01-453-6522
FSC Code: 5331
MPN: BK199

5331-01-477-8627 (BK113Q)

NIIN: 01-477-8627
In stock
NSN: 5331-01-477-8627
FSC Code: 5331
MPN: BK113Q

5331-00-373-8723 (R400-87A)

NIIN: 00-373-8723
In stock
NSN: 5331-00-373-8723
FSC Code: 5331
MPN: R40087A

5331-01-100-8757 (R394R)

NIIN: 01-100-8757
In stock
NSN: 5331-01-100-8757
FSC Code: 5331
MPN: R394R

5331-01-075-0913 (R35155)

NIIN: 01-075-0913
In stock
NSN: 5331-01-075-0913
FSC Code: 5331
MPN: R35155

5331-01-159-8372 (R34812)

NIIN: 01-159-8372
In stock
NSN: 5331-01-159-8372
FSC Code: 5331
MPN: R34812

5331-01-308-5859 (R-3341)

NIIN: 01-308-5859
In stock
NSN: 5331-01-308-5859
FSC Code: 5331
MPN: R3341

5331-01-105-7261 (R33259)

NIIN: 01-105-7261
In stock
NSN: 5331-01-105-7261
FSC Code: 5331
MPN: R33259

5331-01-191-8046 (R306-7)

NIIN: 01-191-8046
In stock
NSN: 5331-01-191-8046
FSC Code: 5331
MPN: R3067

5331-01-301-2081 (R30063)

NIIN: 01-301-2081
In stock
NSN: 5331-01-301-2081
FSC Code: 5331
MPN: R30063

5331-01-188-9433 (R29463)

NIIN: 01-188-9433
In stock
NSN: 5331-01-188-9433
FSC Code: 5331
MPN: R29463

5331-01-100-8756 (R29936)

NIIN: 01-100-8756
In stock
NSN: 5331-01-100-8756
FSC Code: 5331
MPN: R29936

5331-01-333-4464 (R29480)

NIIN: 01-333-4464
In stock
NSN: 5331-01-333-4464
FSC Code: 5331
MPN: R29480

5331-01-100-8755 (R28782)

NIIN: 01-100-8755
In stock
NSN: 5331-01-100-8755
FSC Code: 5331
MPN: R28782

5331-01-097-8846 (R28595)

NIIN: 01-097-8846
In stock
NSN: 5331-01-097-8846
FSC Code: 5331
MPN: R28595

5331-01-077-9618 (R28597)

NIIN: 01-077-9618
In stock
NSN: 5331-01-077-9618
FSC Code: 5331
MPN: R28597

5331-01-105-7257 (R27490)

NIIN: 01-105-7257
In stock
NSN: 5331-01-105-7257
FSC Code: 5331
MPN: R27490

5331-01-117-9281 (R27166)

NIIN: 01-117-9281
In stock
NSN: 5331-01-117-9281
FSC Code: 5331
MPN: R27166

5331-01-105-7258 (R26906)

NIIN: 01-105-7258
In stock
NSN: 5331-01-105-7258
FSC Code: 5331
MPN: R26906

5331-01-111-4151 (R26282)

NIIN: 01-111-4151
In stock
NSN: 5331-01-111-4151
FSC Code: 5331
MPN: R26282

5331-01-101-0594 (R26448)

NIIN: 01-101-0594
In stock
NSN: 5331-01-101-0594
FSC Code: 5331
MPN: R26448

5331-01-076-0201 (R256)

NIIN: 01-076-0201
In stock
NSN: 5331-01-076-0201
FSC Code: 5331
MPN: R256

5331-01-076-0200 (R232)

NIIN: 01-076-0200
In stock
NSN: 5331-01-076-0200
FSC Code: 5331
MPN: R232

5331-01-304-3465 (R21)

NIIN: 01-304-3465
In stock
NSN: 5331-01-304-3465
FSC Code: 5331
MPN: R21

5331-00-287-6516 (R21494)

NIIN: 00-287-6516
In stock
NSN: 5331-00-287-6516
FSC Code: 5331
MPN: R21494