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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.

5331-00-938-4263 (28904-63)

NIIN: 00-938-4263
In stock
NSN: 5331-00-938-4263
FSC Code: 5331
MPN: 2890463

5331-01-269-6149 (28904-12)

NIIN: 01-269-6149
In stock
NSN: 5331-01-269-6149
FSC Code: 5331
MPN: 2890412

5331-00-763-2502 (28904-17)

NIIN: 00-763-2502
In stock
NSN: 5331-00-763-2502
FSC Code: 5331
MPN: 2890417

5331-01-097-9780 (2887997-1)

NIIN: 01-097-9780
In stock
NSN: 5331-01-097-9780
FSC Code: 5331
MPN: 28879971

5331-01-300-6305 (28-855-S)

NIIN: 01-300-6305
In stock
NSN: 5331-01-300-6305
FSC Code: 5331
MPN: 28855S

5331-01-335-7598 (2884BA)

NIIN: 01-335-7598
In stock
NSN: 5331-01-335-7598
FSC Code: 5331
MPN: 2884BA

5331-01-151-5067 (288228-00-6)

NIIN: 01-151-5067
In stock
NSN: 5331-01-151-5067
FSC Code: 5331
MPN: 288228006

5331-01-201-0154 (288228-00-6)

NIIN: 01-201-0154
In stock
NSN: 5331-01-201-0154
FSC Code: 5331
MPN: 288228006

5331-01-124-8925 (288-01)

NIIN: 01-124-8925
In stock
NSN: 5331-01-124-8925
FSC Code: 5331
MPN: 28801

5331-00-159-0762 (287MR141P001)

NIIN: 00-159-0762
In stock
NSN: 5331-00-159-0762
FSC Code: 5331
MPN: 287MR141P001

5331-00-853-4458 (287MS107P005)

NIIN: 00-853-4458
In stock
NSN: 5331-00-853-4458
FSC Code: 5331
MPN: 287MS107P005

5331-00-837-3114 (287MS107P006)

NIIN: 00-837-3114
In stock
NSN: 5331-00-837-3114
FSC Code: 5331
MPN: 287MS107P006

5331-00-060-9180 (287MS115P002)

NIIN: 00-060-9180
In stock
NSN: 5331-00-060-9180
FSC Code: 5331
MPN: 287MS115P002

5331-01-190-1855 (287MR010P003)

NIIN: 01-190-1855
In stock
NSN: 5331-01-190-1855
FSC Code: 5331
MPN: 287MR010P003

5331-00-518-3631 (287MR027P001)

NIIN: 00-518-3631
In stock
NSN: 5331-00-518-3631
FSC Code: 5331
MPN: 287MR027P001

5331-00-541-2156 (287M0044P004)

NIIN: 00-541-2156
In stock
NSN: 5331-00-541-2156
FSC Code: 5331
MPN: 287M0044P004

5331-01-194-4694 (287MR010P002)

NIIN: 01-194-4694
In stock
NSN: 5331-01-194-4694
FSC Code: 5331
MPN: 287MR010P002

5331-00-559-9226 (287MR003P003)

NIIN: 00-559-9226
In stock
NSN: 5331-00-559-9226
FSC Code: 5331
MPN: 287MR003P003

5331-00-683-9896 (287MR003P029)

NIIN: 00-683-9896
In stock
NSN: 5331-00-683-9896
FSC Code: 5331
MPN: 287MR003P029

5331-00-684-1119 (287MR003P006)

NIIN: 00-684-1119
In stock
NSN: 5331-00-684-1119
FSC Code: 5331
MPN: 287MR003P006

5331-01-276-0545 (287-I)

NIIN: 01-276-0545
In stock
NSN: 5331-01-276-0545
FSC Code: 5331
MPN: 287I

5331-01-338-3087 (287I-01000-0156)

NIIN: 01-338-3087
In stock
NSN: 5331-01-338-3087
FSC Code: 5331
MPN: 287I010000156

5331-01-054-6186 (28774-264)

NIIN: 01-054-6186
In stock
NSN: 5331-01-054-6186
FSC Code: 5331
MPN: 28774264

5331-01-276-6656 (28775-026)

NIIN: 01-276-6656
In stock
NSN: 5331-01-276-6656
FSC Code: 5331
MPN: 28775026

5331-00-243-4825 (287-6008P141)

NIIN: 00-243-4825
In stock
NSN: 5331-00-243-4825
FSC Code: 5331
MPN: 2876008P141

5331-00-912-8880 (287-6008P132)

NIIN: 00-912-8880
In stock
NSN: 5331-00-912-8880
FSC Code: 5331
MPN: 2876008P132

5331-00-464-8535 (287-1249P3)

NIIN: 00-464-8535
In stock
NSN: 5331-00-464-8535
FSC Code: 5331
MPN: 2871249P3

5331-00-291-3314 (287-1209P53)

NIIN: 00-291-3314
In stock
NSN: 5331-00-291-3314
FSC Code: 5331
MPN: 2871209P53

5331-00-044-7087 (287-1173P455)

NIIN: 00-044-7087
In stock
NSN: 5331-00-044-7087
FSC Code: 5331
MPN: 2871173P455

5331-00-057-8782 (287-1161P7)

NIIN: 00-057-8782
In stock
NSN: 5331-00-057-8782
FSC Code: 5331
MPN: 2871161P7

5331-00-897-4371 (287-1159P95)

NIIN: 00-897-4371
In stock
NSN: 5331-00-897-4371
FSC Code: 5331
MPN: 2871159P95

5331-00-985-3574 (287-1166P132)

NIIN: 00-985-3574
In stock
NSN: 5331-00-985-3574
FSC Code: 5331
MPN: 2871166P132

5331-00-985-3576 (287-1166P102)

NIIN: 00-985-3576
In stock
NSN: 5331-00-985-3576
FSC Code: 5331
MPN: 2871166P102

5331-01-067-7821 (287-1143P79)

NIIN: 01-067-7821
In stock
NSN: 5331-01-067-7821
FSC Code: 5331
MPN: 2871143P79

5331-01-332-8190 (287-1143P15)

NIIN: 01-332-8190
In stock
NSN: 5331-01-332-8190
FSC Code: 5331
MPN: 2871143P15

5331-00-724-4286 (287-1159P13)

NIIN: 00-724-4286
In stock
NSN: 5331-00-724-4286
FSC Code: 5331
MPN: 2871159P13

5331-00-421-3202 (287-1143P4)

NIIN: 00-421-3202
In stock
NSN: 5331-00-421-3202
FSC Code: 5331
MPN: 2871143P4

5331-00-551-9188 (287-1044P4)

NIIN: 00-551-9188
In stock
NSN: 5331-00-551-9188
FSC Code: 5331
MPN: 2871044P4

5331-00-982-3506 (287-1100P17)

NIIN: 00-982-3506
In stock
NSN: 5331-00-982-3506
FSC Code: 5331
MPN: 2871100P17

5331-01-290-9590 (2870-0013-1)

NIIN: 01-290-9590
In stock
NSN: 5331-01-290-9590
FSC Code: 5331
MPN: 287000131

5331-01-299-8217 (28-6643)

NIIN: 01-299-8217
In stock
NSN: 5331-01-299-8217
FSC Code: 5331
MPN: 286643

5331-01-286-1671 (286-005-363)

NIIN: 01-286-1671
In stock
NSN: 5331-01-286-1671
FSC Code: 5331
MPN: 286005363

5331-00-198-6198 (285-6709-1438382ALTAPC30)

NIIN: 00-198-6198
In stock
NSN: 5331-00-198-6198
FSC Code: 5331
MPN: 28567091438382ALTAPC30

5331-01-121-1475 (28-551-A)

NIIN: 01-121-1475
In stock
NSN: 5331-01-121-1475
FSC Code: 5331
MPN: 28551A

5331-01-235-4326 (285113-0002)

NIIN: 01-235-4326
In stock
NSN: 5331-01-235-4326
FSC Code: 5331
MPN: 2851130002

5331-01-299-8221 (28-4C4B)

NIIN: 01-299-8221
In stock
NSN: 5331-01-299-8221
FSC Code: 5331
MPN: 284C4B

5331-00-229-6825 (2849090-005)

NIIN: 00-229-6825
In stock
NSN: 5331-00-229-6825
FSC Code: 5331
MPN: 2849090005

5331-01-322-8646 (283815-0001)

NIIN: 01-322-8646
In stock
NSN: 5331-01-322-8646
FSC Code: 5331
MPN: 2838150001