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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.

5331-01-268-0874 (333E088R62)

NIIN: 01-268-0874
In stock
NSN: 5331-01-268-0874
FSC Code: 5331
MPN: 333E088R62

5331-01-265-9235 (333C471P30)

NIIN: 01-265-9235
In stock
NSN: 5331-01-265-9235
FSC Code: 5331
MPN: 333C471P30

5331-01-509-2657 (110I.D.X.028)

NIIN: 01-509-2657
In stock
NSN: 5331-01-509-2657
FSC Code: 5331
MPN: 110IDX028

5331-01-371-5128 (11090L003)

NIIN: 01-371-5128
In stock
NSN: 5331-01-371-5128
FSC Code: 5331
MPN: 11090L003

5331-01-422-3875 (11090L002)

NIIN: 01-422-3875
In stock
NSN: 5331-01-422-3875
FSC Code: 5331
MPN: 11090L002

5331-01-505-8975 (11083175-7900)

NIIN: 01-505-8975
In stock
NSN: 5331-01-505-8975
FSC Code: 5331
MPN: 110831757900

5331-01-058-3192 (33335-03)

NIIN: 01-058-3192
In stock
NSN: 5331-01-058-3192
FSC Code: 5331
MPN: 3333503

5331-00-235-5904 (333-30177-1)

NIIN: 00-235-5904
In stock
NSN: 5331-00-235-5904
FSC Code: 5331
MPN: 333301771

5331-00-235-5903 (333-30176-1)

NIIN: 00-235-5903
In stock
NSN: 5331-00-235-5903
FSC Code: 5331
MPN: 333301761

5331-00-235-5917 (333-30181-1)

NIIN: 00-235-5917
In stock
NSN: 5331-00-235-5917
FSC Code: 5331
MPN: 333301811

5331-00-235-5905 (333-30178-1)

NIIN: 00-235-5905
In stock
NSN: 5331-00-235-5905
FSC Code: 5331
MPN: 333301781

5331-01-304-3468 (333-30163-1)

NIIN: 01-304-3468
In stock
NSN: 5331-01-304-3468
FSC Code: 5331
MPN: 333301631

5331-01-419-3454 (110-7753)

NIIN: 01-419-3454
In stock
NSN: 5331-01-419-3454
FSC Code: 5331
MPN: 1107753

5331-00-235-5884 (333-30173-1)

NIIN: 00-235-5884
In stock
NSN: 5331-00-235-5884
FSC Code: 5331
MPN: 333301731

5331-01-312-3265 (332FT160)

NIIN: 01-312-3265
In stock
NSN: 5331-01-312-3265
FSC Code: 5331
MPN: 332FT160

5331-00-291-6946 (332C7415-1)

NIIN: 00-291-6946
In stock
NSN: 5331-00-291-6946
FSC Code: 5331
MPN: 332C74151

5331-00-839-9969 (3327468PC18)

NIIN: 00-839-9969
In stock
NSN: 5331-00-839-9969
FSC Code: 5331
MPN: 3327468PC18

5331-01-007-9512 (3323789-1)

NIIN: 01-007-9512
In stock
NSN: 5331-01-007-9512
FSC Code: 5331
MPN: 33237891

5331-01-009-3981 (3323789-4)

NIIN: 01-009-3981
In stock
NSN: 5331-01-009-3981
FSC Code: 5331
MPN: 33237894

5331-01-008-5073 (3323789-2)

NIIN: 01-008-5073
In stock
NSN: 5331-01-008-5073
FSC Code: 5331
MPN: 33237892

5331-01-009-3980 (3323789-3)

NIIN: 01-009-3980
In stock
NSN: 5331-01-009-3980
FSC Code: 5331
MPN: 33237893

5331-01-334-8462 (332-3-10)

NIIN: 01-334-8462
In stock
NSN: 5331-01-334-8462
FSC Code: 5331
MPN: 332310

5331-01-266-0767 (33225-1)

NIIN: 01-266-0767
In stock
NSN: 5331-01-266-0767
FSC Code: 5331
MPN: 332251

5331-00-407-5614 (33-2)

NIIN: 00-407-5614
In stock
NSN: 5331-00-407-5614
FSC Code: 5331
MPN: 332

5331-00-618-5757 (3317393REVBPC20)

NIIN: 00-618-5757
In stock
NSN: 5331-00-618-5757
FSC Code: 5331
MPN: 3317393REVBPC20

5331-01-260-4683 (33-1587)

NIIN: 01-260-4683
In stock
NSN: 5331-01-260-4683
FSC Code: 5331
MPN: 331587

5331-01-260-4684 (33-1530)

NIIN: 01-260-4684
In stock
NSN: 5331-01-260-4684
FSC Code: 5331
MPN: 331530

5331-00-420-9687 (3314166PC11)

NIIN: 00-420-9687
In stock
NSN: 5331-00-420-9687
FSC Code: 5331
MPN: 3314166PC11

5331-01-357-5611 (11-029-512-004)

NIIN: 01-357-5611
In stock
NSN: 5331-01-357-5611
FSC Code: 5331
MPN: 11029512004

5331-01-202-6721 (3-311216)

NIIN: 01-202-6721
In stock
NSN: 5331-01-202-6721
FSC Code: 5331
MPN: 3311216

5331-01-376-9644 (11022-8IN-IT)

NIIN: 01-376-9644
In stock
NSN: 5331-01-376-9644
FSC Code: 5331
MPN: 110228INIT

5331-12-343-3789 (110-222.X01)

NIIN: 12-343-3789
In stock
NSN: 5331-12-343-3789
FSC Code: 5331
MPN: 110222X01

5331-01-388-8451 (110200-920)

NIIN: 01-388-8451
In stock
NSN: 5331-01-388-8451
FSC Code: 5331
MPN: 110200920

5331-01-393-6789 (11-013)

NIIN: 01-393-6789
In stock
NSN: 5331-01-393-6789
FSC Code: 5331
MPN: 11013

5331-01-292-4000 (330690R2)

NIIN: 01-292-4000
In stock
NSN: 5331-01-292-4000
FSC Code: 5331
MPN: 330690R2

5331-01-292-4007 (3306-ND)

NIIN: 01-292-4007
In stock
NSN: 5331-01-292-4007
FSC Code: 5331
MPN: 3306ND

5331-21-914-1222 (1101-0265)

NIIN: 21-914-1222
In stock
NSN: 5331-21-914-1222
FSC Code: 5331
MPN: 11010265

5331-01-356-1522 (1101-0161)

NIIN: 01-356-1522
In stock
NSN: 5331-01-356-1522
FSC Code: 5331
MPN: 11010161

5331-01-353-6748 (1101-0161)

NIIN: 01-353-6748
In stock
NSN: 5331-01-353-6748
FSC Code: 5331
MPN: 11010161

5331-01-388-8452 (110100-346)

NIIN: 01-388-8452
In stock
NSN: 5331-01-388-8452
FSC Code: 5331
MPN: 110100346

5331-01-398-2636 (110-1/4"PACKING)

NIIN: 01-398-2636
In stock
NSN: 5331-01-398-2636
FSC Code: 5331
MPN: 11014quotPACKING

5331-01-400-1920 (11-010-015)

NIIN: 01-400-1920
In stock
NSN: 5331-01-400-1920
FSC Code: 5331
MPN: 11010015

5331-01-421-2385 (11009L001)

NIIN: 01-421-2385
In stock
NSN: 5331-01-421-2385
FSC Code: 5331
MPN: 11009L001

5331-01-073-0027 (3305159-1)

NIIN: 01-073-0027
In stock
NSN: 5331-01-073-0027
FSC Code: 5331
MPN: 33051591

5331-01-419-3550 (11007L001)

NIIN: 01-419-3550
In stock
NSN: 5331-01-419-3550
FSC Code: 5331
MPN: 11007L001

5331-01-460-8913 (1-100-6)

NIIN: 01-460-8913
In stock
NSN: 5331-01-460-8913
FSC Code: 5331
MPN: 11006

5331-01-173-6601 (3302WA26SBUNVS-3)

NIIN: 01-173-6601
In stock
NSN: 5331-01-173-6601
FSC Code: 5331
MPN: 3302WA26SBUNVS3

5331-01-162-3717 (330160300S)

NIIN: 01-162-3717
In stock
NSN: 5331-01-162-3717
FSC Code: 5331
MPN: 330160300S