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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.

5331-01-105-9280 (36057-138)

NIIN: 01-105-9280
In stock
NSN: 5331-01-105-9280
FSC Code: 5331
MPN: 36057138

5331-01-105-9279 (36057-116)

NIIN: 01-105-9279
In stock
NSN: 5331-01-105-9279
FSC Code: 5331
MPN: 36057116

5331-01-163-2305 (36057-45101)

NIIN: 01-163-2305
In stock
NSN: 5331-01-163-2305
FSC Code: 5331
MPN: 3605745101

5331-01-101-4774 (36057-107)

NIIN: 01-101-4774
In stock
NSN: 5331-01-101-4774
FSC Code: 5331
MPN: 36057107

5331-01-105-9278 (36057-030)

NIIN: 01-105-9278
In stock
NSN: 5331-01-105-9278
FSC Code: 5331
MPN: 36057030

5331-01-204-2026 (36025-48)

NIIN: 01-204-2026
In stock
NSN: 5331-01-204-2026
FSC Code: 5331
MPN: 3602548

5331-01-424-2006 (119.3X5.7)

NIIN: 01-424-2006
In stock
NSN: 5331-01-424-2006
FSC Code: 5331
MPN: 1193X57

5331-01-412-8704 (118M)

NIIN: 01-412-8704
In stock
NSN: 5331-01-412-8704
FSC Code: 5331
MPN: 118M

5331-01-148-6711 (36011-16)

NIIN: 01-148-6711
In stock
NSN: 5331-01-148-6711
FSC Code: 5331
MPN: 3601116

5331-01-149-7237 (36008-439)

NIIN: 01-149-7237
In stock
NSN: 5331-01-149-7237
FSC Code: 5331
MPN: 36008439

5331-01-148-6710 (36008-222)

NIIN: 01-148-6710
In stock
NSN: 5331-01-148-6710
FSC Code: 5331
MPN: 36008222

5331-00-663-7373 (3600-254REVAPC63)

NIIN: 00-663-7373
In stock
NSN: 5331-00-663-7373
FSC Code: 5331
MPN: 3600254REVAPC63

5331-01-440-9441 (118-8706)

NIIN: 01-440-9441
In stock
NSN: 5331-01-440-9441
FSC Code: 5331
MPN: 1188706

5331-00-663-7690 (3600-254REVAPC54)

NIIN: 00-663-7690
In stock
NSN: 5331-00-663-7690
FSC Code: 5331
MPN: 3600254REVAPC54

5331-00-663-7374 (3600-254REVAPC77)

NIIN: 00-663-7374
In stock
NSN: 5331-00-663-7374
FSC Code: 5331
MPN: 3600254REVAPC77

5331-00-663-7691 (3600-254REVAPC55)

NIIN: 00-663-7691
In stock
NSN: 5331-00-663-7691
FSC Code: 5331
MPN: 3600254REVAPC55

5331-01-449-5655 (118-7536)

NIIN: 01-449-5655
In stock
NSN: 5331-01-449-5655
FSC Code: 5331
MPN: 1187536

5331-01-509-1986 (118-5804)

NIIN: 01-509-1986
In stock
NSN: 5331-01-509-1986
FSC Code: 5331
MPN: 1185804

5331-00-001-4786 (3-5N525-6)

NIIN: 00-001-4786
In stock
NSN: 5331-00-001-4786
FSC Code: 5331
MPN: 35N5256

5331-01-287-0225 (35HAF1.0620.D.X)

NIIN: 01-287-0225
In stock
NSN: 5331-01-287-0225
FSC Code: 5331
MPN: 35HAF10620DX

5331-01-511-1609 (118-517)

NIIN: 01-511-1609
In stock
NSN: 5331-01-511-1609
FSC Code: 5331
MPN: 118517

5331-01-274-5602 (35HAF556X349X406)

NIIN: 01-274-5602
In stock
NSN: 5331-01-274-5602
FSC Code: 5331
MPN: 35HAF556X349X406

5331-01-275-7620 (35HAF.687O.DX.4)

NIIN: 01-275-7620
In stock
NSN: 5331-01-275-7620
FSC Code: 5331
MPN: 35HAF687ODX4

5331-01-554-3133 (118-5068)

NIIN: 01-554-3133
In stock
NSN: 5331-01-554-3133
FSC Code: 5331
MPN: 1185068

5331-00-060-7162 (3-5C0MPS418-6)

NIIN: 00-060-7162
In stock
NSN: 5331-00-060-7162
FSC Code: 5331
MPN: 35C0MPS4186

5331-01-370-5706 (1-18319/NAVY)

NIIN: 01-370-5706
In stock
NSN: 5331-01-370-5706
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-6910 (1-18319/NAVY)

NIIN: 01-370-6910
In stock
NSN: 5331-01-370-6910
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-5704 (1-18319/NAVY)

NIIN: 01-370-5704
In stock
NSN: 5331-01-370-5704
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-5705 (1-18319/NAVY)

NIIN: 01-370-5705
In stock
NSN: 5331-01-370-5705
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-6907 (1-18319/NAVY)

NIIN: 01-370-6907
In stock
NSN: 5331-01-370-6907
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-5709 (1-18319/NAVY)

NIIN: 01-370-5709
In stock
NSN: 5331-01-370-5709
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-6911 (1-18319/NAVY)

NIIN: 01-370-6911
In stock
NSN: 5331-01-370-6911
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-5708 (1-18319/NAVY)

NIIN: 01-370-5708
In stock
NSN: 5331-01-370-5708
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-5710 (1-18319/NAVY)

NIIN: 01-370-5710
In stock
NSN: 5331-01-370-5710
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-6909 (1-18319/NAVY)

NIIN: 01-370-6909
In stock
NSN: 5331-01-370-6909
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-6906 (1-18319/NAVY)

NIIN: 01-370-6906
In stock
NSN: 5331-01-370-6906
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-5707 (1-18319/NAVY)

NIIN: 01-370-5707
In stock
NSN: 5331-01-370-5707
FSC Code: 5331
MPN: 118319NAVY

5331-01-370-6908 (1-18319/NAVY)

NIIN: 01-370-6908
In stock
NSN: 5331-01-370-6908
FSC Code: 5331
MPN: 118319NAVY

5331-00-958-0278 (359870-1)

NIIN: 00-958-0278
In stock
NSN: 5331-00-958-0278
FSC Code: 5331
MPN: 3598701

5331-01-386-7144 (N0525TVQ1181-2070)

NIIN: 01-386-7144
In stock
NSN: 5331-01-386-7144
FSC Code: 5331
MPN: N0525TVQ11812070

5331-01-541-0224 (AMS-P-83461/2-438)

NIIN: 01-541-0224
In stock
NSN: 5331-01-541-0224
FSC Code: 5331
MPN: AMSP834612438

5331-01-280-7518 (35-9521)

NIIN: 01-280-7518
In stock
NSN: 5331-01-280-7518
FSC Code: 5331
MPN: 359521

5331-01-508-5877 (118-03970NBN)

NIIN: 01-508-5877
In stock
NSN: 5331-01-508-5877
FSC Code: 5331
MPN: 11803970NBN

5331-01-280-7517 (35-9176)

NIIN: 01-280-7517
In stock
NSN: 5331-01-280-7517
FSC Code: 5331
MPN: 359176

5331-01-428-7605 (117MMX4MM)

NIIN: 01-428-7605
In stock
NSN: 5331-01-428-7605
FSC Code: 5331
MPN: 117MMX4MM

5331-01-436-9203 (117921-0011)

NIIN: 01-436-9203
In stock
NSN: 5331-01-436-9203
FSC Code: 5331
MPN: 1179210011

5331-01-436-9204 (117921-0021)

NIIN: 01-436-9204
In stock
NSN: 5331-01-436-9204
FSC Code: 5331
MPN: 1179210021

5331-01-126-0869 (358L002)

NIIN: 01-126-0869
In stock
NSN: 5331-01-126-0869
FSC Code: 5331
MPN: 358L002