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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.

5331-01-611-3556 (655145568)

NIIN: 01-611-3556
In stock
NSN: 5331-01-611-3556
FSC Code: 5331
MPN: 655145568

5331-01-610-9179 (652263568)

NIIN: 01-610-9179
In stock
NSN: 5331-01-610-9179
FSC Code: 5331
MPN: 652263568

5331-01-610-8791 (21231681)

NIIN: 01-610-8791
In stock
NSN: 5331-01-610-8791
FSC Code: 5331
MPN: 21231681

5331-01-610-7593 (3220-8035-5)

NIIN: 01-610-7593
In stock
NSN: 5331-01-610-7593
FSC Code: 5331
MPN: 322080355

5331-01-610-5835 (3220-8025-0)

NIIN: 01-610-5835
In stock
NSN: 5331-01-610-5835
FSC Code: 5331
MPN: 322080250

5331-01-611-3852 (0070-075-009)

NIIN: 01-611-3852
In stock
NSN: 5331-01-611-3852
FSC Code: 5331
MPN: 0070075009

5331-01-611-1154 (D012200-P-01 ITEM 54)

NIIN: 01-611-1154
In stock
NSN: 5331-01-611-1154
FSC Code: 5331
MPN: D012200P01ITEM54

5331-01-610-9329 (3-912-C0873)

NIIN: 01-610-9329
In stock
NSN: 5331-01-610-9329
FSC Code: 5331
MPN: 3912C0873

5331-01-610-9271 (2-218-N552-90)

NIIN: 01-610-9271
In stock
NSN: 5331-01-610-9271
FSC Code: 5331
MPN: 2218N55290

5331-01-610-8990 (151462)

NIIN: 01-610-8990
In stock
NSN: 5331-01-610-8990
FSC Code: 5331
MPN: 151462

5331-01-610-7375 (LFEPEQ16B-013)

NIIN: 01-610-7375
In stock
NSN: 5331-01-610-7375
FSC Code: 5331
MPN: LFEPEQ16B013

5331-01-610-5439 (R910730041)

NIIN: 01-610-5439
In stock
NSN: 5331-01-610-5439
FSC Code: 5331
MPN: R910730041

5331-01-611-6304 (118846)

NIIN: 01-611-6304
In stock
NSN: 5331-01-611-6304
FSC Code: 5331
MPN: 118846

5331-01-611-4843 (1531758-87)

NIIN: 01-611-4843
In stock
NSN: 5331-01-611-4843
FSC Code: 5331
MPN: 153175887

5331-01-611-3982 (655139563)

NIIN: 01-611-3982
In stock
NSN: 5331-01-611-3982
FSC Code: 5331
MPN: 655139563

5331-01-611-3388 (20-02-6510-1212)

NIIN: 01-611-3388
In stock
NSN: 5331-01-611-3388
FSC Code: 5331
MPN: 200265101212

5331-01-610-8928 (150148)

NIIN: 01-610-8928
In stock
NSN: 5331-01-610-8928
FSC Code: 5331
MPN: 150148

5331-01-610-7087 (3220-8091-5)

NIIN: 01-610-7087
In stock
NSN: 5331-01-610-7087
FSC Code: 5331
MPN: 322080915

5331-01-610-7069 (02/911505)

NIIN: 01-610-7069
In stock
NSN: 5331-01-610-7069
FSC Code: 5331
MPN: 02911505

5331-01-611-5646 (22405B)

NIIN: 01-611-5646
In stock
NSN: 5331-01-611-5646
FSC Code: 5331
MPN: 22405B

5331-01-611-5477 (652797068)

NIIN: 01-611-5477
In stock
NSN: 5331-01-611-5477
FSC Code: 5331
MPN: 652797068

5331-01-611-4141 (652243568)

NIIN: 01-611-4141
In stock
NSN: 5331-01-611-4141
FSC Code: 5331
MPN: 652243568

5331-01-611-4063 (14001305)

NIIN: 01-611-4063
In stock
NSN: 5331-01-611-4063
FSC Code: 5331
MPN: 14001305

5331-01-611-2014 (1001-14B)

NIIN: 01-611-2014
In stock
NSN: 5331-01-611-2014
FSC Code: 5331
MPN: 100114B

5331-01-611-1156 (SD012200-391)

NIIN: 01-611-1156
In stock
NSN: 5331-01-611-1156
FSC Code: 5331
MPN: SD012200391

5331-01-610-8925 (T10540788)

NIIN: 01-610-8925
In stock
NSN: 5331-01-610-8925
FSC Code: 5331
MPN: T10540788

5331-01-610-8897 (9464K281)

NIIN: 01-610-8897
In stock
NSN: 5331-01-610-8897
FSC Code: 5331
MPN: 9464K281

5331-01-610-8846 (SD012200-180-10)

NIIN: 01-610-8846
In stock
NSN: 5331-01-610-8846
FSC Code: 5331
MPN: SD01220018010

5331-01-610-6033 (330362995)

NIIN: 01-610-6033
In stock
NSN: 5331-01-610-6033
FSC Code: 5331
MPN: 330362995

5331-01-610-5713 (6312E94-ITEM24)

NIIN: 01-610-5713
In stock
NSN: 5331-01-610-5713
FSC Code: 5331
MPN: 6312E94ITEM24

5331-01-611-2949 (D012200-P-01ITEM45)

NIIN: 01-611-2949
In stock
NSN: 5331-01-611-2949
FSC Code: 5331
MPN: D012200P01ITEM45

5331-01-610-9895 (11289A)

NIIN: 01-610-9895
In stock
NSN: 5331-01-610-9895
FSC Code: 5331
MPN: 11289A

5331-01-610-9135 (655054368)

NIIN: 01-610-9135
In stock
NSN: 5331-01-610-9135
FSC Code: 5331
MPN: 655054368

5331-01-610-7038 (SD012200-180-04)

NIIN: 01-610-7038
In stock
NSN: 5331-01-610-7038
FSC Code: 5331
MPN: SD01220018004

5331-01-610-7088 (3220-8074-5)

NIIN: 01-610-7088
In stock
NSN: 5331-01-610-7088
FSC Code: 5331
MPN: 322080745

5331-01-610-6379 (3-906-V1164-75)

NIIN: 01-610-6379
In stock
NSN: 5331-01-610-6379
FSC Code: 5331
MPN: 3906V116475

5331-01-610-5823 (111E1864-ITEM2)

NIIN: 01-610-5823
In stock
NSN: 5331-01-610-5823
FSC Code: 5331
MPN: 111E1864ITEM2

5331-01-610-5840 (3220-8004-5)

NIIN: 01-610-5840
In stock
NSN: 5331-01-610-5840
FSC Code: 5331
MPN: 322080045

5331-01-610-4461 (1815873C1)

NIIN: 01-610-4461
In stock
NSN: 5331-01-610-4461
FSC Code: 5331
MPN: 1815873C1

5331-01-610-4315 (330385)

NIIN: 01-610-4315
In stock
NSN: 5331-01-610-4315
FSC Code: 5331
MPN: 330385

5331-01-611-3512 (685170150)

NIIN: 01-611-3512
In stock
NSN: 5331-01-611-3512
FSC Code: 5331
MPN: 685170150

5331-01-611-0050 (3220-8005-5)

NIIN: 01-611-0050
In stock
NSN: 5331-01-611-0050
FSC Code: 5331
MPN: 322080055

5331-01-610-6050 (AS568A-011)

NIIN: 01-610-6050
In stock
NSN: 5331-01-610-6050
FSC Code: 5331
MPN: AS568A011

5331-01-610-5806 (3220-8059-0)

NIIN: 01-610-5806
In stock
NSN: 5331-01-610-5806
FSC Code: 5331
MPN: 322080590

5331-01-611-4881 (94115K151)

NIIN: 01-611-4881
In stock
NSN: 5331-01-611-4881
FSC Code: 5331
MPN: 94115K151

5331-01-611-1152 (SD012200-398)

NIIN: 01-611-1152
In stock
NSN: 5331-01-611-1152
FSC Code: 5331
MPN: SD012200398

5331-01-610-9894 (10957)

NIIN: 01-610-9894
In stock
NSN: 5331-01-610-9894
FSC Code: 5331
MPN: 10957

5331-01-610-7349 (3220-8061-0)

NIIN: 01-610-7349
In stock
NSN: 5331-01-610-7349
FSC Code: 5331
MPN: 322080610