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.

5331-00-253-5363 (M25988/2-035)

NIIN: 00-253-5363
In stock
NSN: 5331-00-253-5363
FSC Code: 5331
MPN: M259882035

5331-01-330-3176 (M25988/2-027)

NIIN: 01-330-3176
In stock
NSN: 5331-01-330-3176
FSC Code: 5331
MPN: M259882027

5331-00-401-4820 (M25988/2-037)

NIIN: 00-401-4820
In stock
NSN: 5331-00-401-4820
FSC Code: 5331
MPN: M259882037

5331-01-079-5185 (M25988/2-026)

NIIN: 01-079-5185
In stock
NSN: 5331-01-079-5185
FSC Code: 5331
MPN: M259882026

5331-01-087-8824 (M25988/2-022)

NIIN: 01-087-8824
In stock
NSN: 5331-01-087-8824
FSC Code: 5331
MPN: M259882022

5331-00-922-3261 (M25988/2-021)

NIIN: 00-922-3261
In stock
NSN: 5331-00-922-3261
FSC Code: 5331
MPN: M259882021

5331-00-179-9443 (M25988/2-021)

NIIN: 00-179-9443
In stock
NSN: 5331-00-179-9443
FSC Code: 5331
MPN: M259882021

5331-01-326-9506 (M25988/2-019)

NIIN: 01-326-9506
In stock
NSN: 5331-01-326-9506
FSC Code: 5331
MPN: M259882019

5331-01-079-7300 (M25988/2-017)

NIIN: 01-079-7300
In stock
NSN: 5331-01-079-7300
FSC Code: 5331
MPN: M259882017

5331-01-079-7299 (M25988/2-016)

NIIN: 01-079-7299
In stock
NSN: 5331-01-079-7299
FSC Code: 5331
MPN: M259882016

5331-00-401-4804 (M25988/2-018)

NIIN: 00-401-4804
In stock
NSN: 5331-00-401-4804
FSC Code: 5331
MPN: M259882018

5331-00-220-5211 (M25988/2-015)

NIIN: 00-220-5211
In stock
NSN: 5331-00-220-5211
FSC Code: 5331
MPN: M259882015

5331-01-079-7303 (M25988/2-009)

NIIN: 01-079-7303
In stock
NSN: 5331-01-079-7303
FSC Code: 5331
MPN: M259882009

5331-01-025-2734 (M25988/2-003)

NIIN: 01-025-2734
In stock
NSN: 5331-01-025-2734
FSC Code: 5331
MPN: M259882003

5331-01-086-9325 (M25988/2-008)

NIIN: 01-086-9325
In stock
NSN: 5331-01-086-9325
FSC Code: 5331
MPN: M259882008

5331-01-330-9833 (M25988/2-007)

NIIN: 01-330-9833
In stock
NSN: 5331-01-330-9833
FSC Code: 5331
MPN: M259882007

5331-01-080-2230 (M25988/1-920)

NIIN: 01-080-2230
In stock
NSN: 5331-01-080-2230
FSC Code: 5331
MPN: M259881920

5331-01-138-2107 (M25988/1-932)

NIIN: 01-138-2107
In stock
NSN: 5331-01-138-2107
FSC Code: 5331
MPN: M259881932

5331-01-181-8234 (M25988/1-914)

NIIN: 01-181-8234
In stock
NSN: 5331-01-181-8234
FSC Code: 5331
MPN: M259881914

5331-00-279-9320 (M25988/1-924)

NIIN: 00-279-9320
In stock
NSN: 5331-00-279-9320
FSC Code: 5331
MPN: M259881924

5331-01-181-8235 (M25988/1-911)

NIIN: 01-181-8235
In stock
NSN: 5331-01-181-8235
FSC Code: 5331
MPN: M259881911

5331-00-340-4724 (M25988/1-909)

NIIN: 00-340-4724
In stock
NSN: 5331-00-340-4724
FSC Code: 5331
MPN: M259881909

5331-01-298-4845 (M25988/1-901)

NIIN: 01-298-4845
In stock
NSN: 5331-01-298-4845
FSC Code: 5331
MPN: M259881901

5331-01-083-6509 (M25988/1-439)

NIIN: 01-083-6509
In stock
NSN: 5331-01-083-6509
FSC Code: 5331
MPN: M259881439

5331-00-288-1983 (M25988/1-359)

NIIN: 00-288-1983
In stock
NSN: 5331-00-288-1983
FSC Code: 5331
MPN: M259881359

5331-01-083-6508 (M25988/1-367)

NIIN: 01-083-6508
In stock
NSN: 5331-01-083-6508
FSC Code: 5331
MPN: M259881367

5331-00-288-1998 (M25988/1-339)

NIIN: 00-288-1998
In stock
NSN: 5331-00-288-1998
FSC Code: 5331
MPN: M259881339

5331-01-174-8255 (M25988/1-345)

NIIN: 01-174-8255
In stock
NSN: 5331-01-174-8255
FSC Code: 5331
MPN: M259881345

5331-00-279-9401 (M25988/1-332)

NIIN: 00-279-9401
In stock
NSN: 5331-00-279-9401
FSC Code: 5331
MPN: M259881332

5331-01-259-4086 (M25988/1-343)

NIIN: 01-259-4086
In stock
NSN: 5331-01-259-4086
FSC Code: 5331
MPN: M259881343

5331-01-007-1620 (M25988/1-346)

NIIN: 01-007-1620
In stock
NSN: 5331-01-007-1620
FSC Code: 5331
MPN: M259881346

5331-00-292-5476 (M25988/1-335)

NIIN: 00-292-5476
In stock
NSN: 5331-00-292-5476
FSC Code: 5331
MPN: M259881335

5331-00-558-1003 (M25988/1-333)

NIIN: 00-558-1003
In stock
NSN: 5331-00-558-1003
FSC Code: 5331
MPN: M259881333

5331-01-181-2360 (M25988/1-336)

NIIN: 01-181-2360
In stock
NSN: 5331-01-181-2360
FSC Code: 5331
MPN: M259881336

5331-01-102-1899 (M25988/1-320)

NIIN: 01-102-1899
In stock
NSN: 5331-01-102-1899
FSC Code: 5331
MPN: M259881320

5331-01-083-6507 (M25988/1-324)

NIIN: 01-083-6507
In stock
NSN: 5331-01-083-6507
FSC Code: 5331
MPN: M259881324

5331-01-089-2577 (M25988/1-275)

NIIN: 01-089-2577
In stock
NSN: 5331-01-089-2577
FSC Code: 5331
MPN: M259881275

5331-01-129-3147 (M25988/1-259)

NIIN: 01-129-3147
In stock
NSN: 5331-01-129-3147
FSC Code: 5331
MPN: M259881259

5331-01-220-2475 (M25988/1-318)

NIIN: 01-220-2475
In stock
NSN: 5331-01-220-2475
FSC Code: 5331
MPN: M259881318

5331-01-007-1615 (M25988/1-270)

NIIN: 01-007-1615
In stock
NSN: 5331-01-007-1615
FSC Code: 5331
MPN: M259881270

5331-01-322-8784 (M25988/1-279)

NIIN: 01-322-8784
In stock
NSN: 5331-01-322-8784
FSC Code: 5331
MPN: M259881279

5331-00-283-4631 (M25988/1-257)

NIIN: 00-283-4631
In stock
NSN: 5331-00-283-4631
FSC Code: 5331
MPN: M259881257

5331-01-007-1612 (M25988/1-263)

NIIN: 01-007-1612
In stock
NSN: 5331-01-007-1612
FSC Code: 5331
MPN: M259881263

5331-00-303-0092 (M25988/1-266)

NIIN: 00-303-0092
In stock
NSN: 5331-00-303-0092
FSC Code: 5331
MPN: M259881266

5331-01-007-1614 (M25988/1-268)

NIIN: 01-007-1614
In stock
NSN: 5331-01-007-1614
FSC Code: 5331
MPN: M259881268

5331-01-007-1613 (M25988/1-267)

NIIN: 01-007-1613
In stock
NSN: 5331-01-007-1613
FSC Code: 5331
MPN: M259881267

5331-01-007-7088 (M25988/1-258)

NIIN: 01-007-7088
In stock
NSN: 5331-01-007-7088
FSC Code: 5331
MPN: M259881258

5331-01-007-1610 (M25988/1-260)

NIIN: 01-007-1610
In stock
NSN: 5331-01-007-1610
FSC Code: 5331
MPN: M259881260