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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.

5331-00-372-8633 (AS568-135MILP55)

NIIN: 00-372-8633
In stock
NSN: 5331-00-372-8633
FSC Code: 5331
MPN: AS568135MILP55

5331-00-395-2953 (AS568-141TEFL0N)

NIIN: 00-395-2953
In stock
NSN: 5331-00-395-2953
FSC Code: 5331
MPN: AS568141TEFL0N

5331-00-338-1546 (AS568-141MILG23)

NIIN: 00-338-1546
In stock
NSN: 5331-00-338-1546
FSC Code: 5331
MPN: AS568141MILG23

5331-01-004-7226 (AS568-120MILP5516-70DURM)

NIIN: 01-004-7226
In stock
NSN: 5331-01-004-7226
FSC Code: 5331
MPN: AS568120MILP551670DURM

5331-00-364-9891 (AS568-131MIL-P-5516)

NIIN: 00-364-9891
In stock
NSN: 5331-00-364-9891
FSC Code: 5331
MPN: AS568131MILP5516

5331-00-087-3767 (AS568-113)

NIIN: 00-087-3767
In stock
NSN: 5331-00-087-3767
FSC Code: 5331
MPN: AS568113

5331-01-004-7230 (AS568-118MILP5516-70DURM)

NIIN: 01-004-7230
In stock
NSN: 5331-01-004-7230
FSC Code: 5331
MPN: AS568118MILP551670DURM

5331-01-318-4561 (AS568-119)

NIIN: 01-318-4561
In stock
NSN: 5331-01-318-4561
FSC Code: 5331
MPN: AS568119

5331-01-017-8871 (AS568-117)

NIIN: 01-017-8871
In stock
NSN: 5331-01-017-8871
FSC Code: 5331
MPN: AS568117

5331-01-004-7229 (AS568-117MILP5516-70DURM)

NIIN: 01-004-7229
In stock
NSN: 5331-01-004-7229
FSC Code: 5331
MPN: AS568117MILP551670DURM

5331-01-126-1229 (AS568-117AMS3651)

NIIN: 01-126-1229
In stock
NSN: 5331-01-126-1229
FSC Code: 5331
MPN: AS568117AMS3651

5331-01-076-3203 (AS568-113MIL-P-)

NIIN: 01-076-3203
In stock
NSN: 5331-01-076-3203
FSC Code: 5331
MPN: AS568113MILP

5331-01-076-3202 (AS568-116MIL-P-)

NIIN: 01-076-3202
In stock
NSN: 5331-01-076-3202
FSC Code: 5331
MPN: AS568116MILP

5331-01-126-4762 (AS568-111AMS3651)

NIIN: 01-126-4762
In stock
NSN: 5331-01-126-4762
FSC Code: 5331
MPN: AS568111AMS3651

5331-00-983-8196 (AS568-112)

NIIN: 00-983-8196
In stock
NSN: 5331-00-983-8196
FSC Code: 5331
MPN: AS568112

5331-01-006-5472 (AS568-104)

NIIN: 01-006-5472
In stock
NSN: 5331-01-006-5472
FSC Code: 5331
MPN: AS568104

5331-01-134-1983 (AS568-013/GR)

NIIN: 01-134-1983
In stock
NSN: 5331-01-134-1983
FSC Code: 5331
MPN: AS568013GR

5331-00-567-4622 (AS568-041MILP5516CLB)

NIIN: 00-567-4622
In stock
NSN: 5331-00-567-4622
FSC Code: 5331
MPN: AS568041MILP5516CLB

5331-01-142-4432 (AS568-038MIL-G-23652)

NIIN: 01-142-4432
In stock
NSN: 5331-01-142-4432
FSC Code: 5331
MPN: AS568038MILG23652

5331-01-027-4693 (AS568-018)

NIIN: 01-027-4693
In stock
NSN: 5331-01-027-4693
FSC Code: 5331
MPN: AS568018

5331-01-150-1209 (AS568-021)

NIIN: 01-150-1209
In stock
NSN: 5331-01-150-1209
FSC Code: 5331
MPN: AS568021

5331-01-130-7328 (AS568-009MILG22050GRADE1)

NIIN: 01-130-7328
In stock
NSN: 5331-01-130-7328
FSC Code: 5331
MPN: AS568009MILG22050GRADE1

5331-01-004-7233 (AS568-016MILP5516-70DURM)

NIIN: 01-004-7233
In stock
NSN: 5331-01-004-7233
FSC Code: 5331
MPN: AS568016MILP551670DURM

5331-00-059-8690 (AS568-012)

NIIN: 00-059-8690
In stock
NSN: 5331-00-059-8690
FSC Code: 5331
MPN: AS568012

5331-00-556-8288 (AS568-016IDSA9250)

NIIN: 00-556-8288
In stock
NSN: 5331-00-556-8288
FSC Code: 5331
MPN: AS568016IDSA9250

5331-01-029-8622 (AS568-017)

NIIN: 01-029-8622
In stock
NSN: 5331-01-029-8622
FSC Code: 5331
MPN: AS568017

5331-01-537-0088 (5PTC1518F070A)

NIIN: 01-537-0088
In stock
NSN: 5331-01-537-0088
FSC Code: 5331
MPN: 5PTC1518F070A

5331-00-432-4952 (AS568-012)

NIIN: 00-432-4952
In stock
NSN: 5331-00-432-4952
FSC Code: 5331
MPN: AS568012

5331-01-137-7079 (AS568-016)

NIIN: 01-137-7079
In stock
NSN: 5331-01-137-7079
FSC Code: 5331
MPN: AS568016

5331-01-487-9984 (5PTC1518B059A)

NIIN: 01-487-9984
In stock
NSN: 5331-01-487-9984
FSC Code: 5331
MPN: 5PTC1518B059A

5331-01-029-8619 (AS568-012)

NIIN: 01-029-8619
In stock
NSN: 5331-01-029-8619
FSC Code: 5331
MPN: AS568012

5331-01-487-9987 (5PTC1518B039A)

NIIN: 01-487-9987
In stock
NSN: 5331-01-487-9987
FSC Code: 5331
MPN: 5PTC1518B039A

5331-01-058-7112 (AS568-008MILG21569CL1)

NIIN: 01-058-7112
In stock
NSN: 5331-01-058-7112
FSC Code: 5331
MPN: AS568008MILG21569CL1

5331-01-058-4004 (AS568-012)

NIIN: 01-058-4004
In stock
NSN: 5331-01-058-4004
FSC Code: 5331
MPN: AS568012

5331-01-026-2909 (AS568-008)

NIIN: 01-026-2909
In stock
NSN: 5331-01-026-2909
FSC Code: 5331
MPN: AS568008

5331-00-395-4255 (AS568-007M1LG22050CGR2)

NIIN: 00-395-4255
In stock
NSN: 5331-00-395-4255
FSC Code: 5331
MPN: AS568007M1LG22050CGR2

5331-01-017-4155 (AS568-008MILR11)

NIIN: 01-017-4155
In stock
NSN: 5331-01-017-4155
FSC Code: 5331
MPN: AS568008MILR11

5331-01-222-9109 (AS568-006)

NIIN: 01-222-9109
In stock
NSN: 5331-01-222-9109
FSC Code: 5331
MPN: AS568006

5331-01-350-5345 (5P-8872)

NIIN: 01-350-5345
In stock
NSN: 5331-01-350-5345
FSC Code: 5331
MPN: 5P8872

5331-01-237-6868 (AS568-008)

NIIN: 01-237-6868
In stock
NSN: 5331-01-237-6868
FSC Code: 5331
MPN: AS568008

5331-00-983-8197 (AS568-011AMS3209)

NIIN: 00-983-8197
In stock
NSN: 5331-00-983-8197
FSC Code: 5331
MPN: AS568011AMS3209

5331-01-277-8880 (AS568-008)

NIIN: 01-277-8880
In stock
NSN: 5331-01-277-8880
FSC Code: 5331
MPN: AS568008

5331-00-087-3768 (AS568-004)

NIIN: 00-087-3768
In stock
NSN: 5331-00-087-3768
FSC Code: 5331
MPN: AS568004

5331-01-438-1404 (CV132976)

NIIN: 01-438-1404
In stock
NSN: 5331-01-438-1404
FSC Code: 5331
MPN: CV132976

5331-01-412-1452 (5P-9658)

NIIN: 01-412-1452
In stock
NSN: 5331-01-412-1452
FSC Code: 5331
MPN: 5P9658

5331-01-518-0632 (5P9186)

NIIN: 01-518-0632
In stock
NSN: 5331-01-518-0632
FSC Code: 5331
MPN: 5P9186

5331-01-413-9518 (5P-8429)

NIIN: 01-413-9518
In stock
NSN: 5331-01-413-9518
FSC Code: 5331
MPN: 5P8429

5331-01-474-8816 (LLLRP-F044)

NIIN: 01-474-8816
In stock
NSN: 5331-01-474-8816
FSC Code: 5331
MPN: LLLRPF044