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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.

5331-00-690-0088 (RNG-34)

NIIN: 00-690-0088
In stock
NSN: 5331-00-690-0088
FSC Code: 5331
MPN: RNG34

5331-01-259-7483 (RNG-1955)

NIIN: 01-259-7483
In stock
NSN: 5331-01-259-7483
FSC Code: 5331
MPN: RNG1955

5331-01-256-2917 (RNG206)

NIIN: 01-256-2917
In stock
NSN: 5331-01-256-2917
FSC Code: 5331
MPN: RNG206

5331-00-104-2181 (RNG-207)

NIIN: 00-104-2181
In stock
NSN: 5331-00-104-2181
FSC Code: 5331
MPN: RNG207

5331-01-305-1261 (RNG207)

NIIN: 01-305-1261
In stock
NSN: 5331-01-305-1261
FSC Code: 5331
MPN: RNG207

5331-00-782-0712 (RNG201)

NIIN: 00-782-0712
In stock
NSN: 5331-00-782-0712
FSC Code: 5331
MPN: RNG201

5331-00-263-9815 (RNG1551)

NIIN: 00-263-9815
In stock
NSN: 5331-00-263-9815
FSC Code: 5331
MPN: RNG1551

5331-01-260-8812 (RNG-1954)

NIIN: 01-260-8812
In stock
NSN: 5331-01-260-8812
FSC Code: 5331
MPN: RNG1954

5331-00-006-8298 (RNG1856)

NIIN: 00-006-8298
In stock
NSN: 5331-00-006-8298
FSC Code: 5331
MPN: RNG1856

5331-01-119-3468 (RNG-1695)

NIIN: 01-119-3468
In stock
NSN: 5331-01-119-3468
FSC Code: 5331
MPN: RNG1695

5331-01-400-3746 (C142.238)

NIIN: 01-400-3746
In stock
NSN: 5331-01-400-3746
FSC Code: 5331
MPN: C142238

5331-01-400-3764 (C142.156)

NIIN: 01-400-3764
In stock
NSN: 5331-01-400-3764
FSC Code: 5331
MPN: C142156

5331-00-887-8189 (RNG1377)

NIIN: 00-887-8189
In stock
NSN: 5331-00-887-8189
FSC Code: 5331
MPN: RNG1377

5331-15-143-2853 (C140022)

NIIN: 15-143-2853
In stock
NSN: 5331-15-143-2853
FSC Code: 5331
MPN: C140022

5331-01-277-0934 (RNG-147)

NIIN: 01-277-0934
In stock
NSN: 5331-01-277-0934
FSC Code: 5331
MPN: RNG147

5331-01-100-1091 (RNG-133)

NIIN: 01-100-1091
In stock
NSN: 5331-01-100-1091
FSC Code: 5331
MPN: RNG133

5331-01-176-7943 (RNG-131)

NIIN: 01-176-7943
In stock
NSN: 5331-01-176-7943
FSC Code: 5331
MPN: RNG131

5331-01-400-3742 (C140.051)

NIIN: 01-400-3742
In stock
NSN: 5331-01-400-3742
FSC Code: 5331
MPN: C140051

5331-00-702-6686 (RNG1448)

NIIN: 00-702-6686
In stock
NSN: 5331-00-702-6686
FSC Code: 5331
MPN: RNG1448

5331-00-225-5835 (RNG-127)

NIIN: 00-225-5835
In stock
NSN: 5331-00-225-5835
FSC Code: 5331
MPN: RNG127

5331-01-400-3747 (C140.050)

NIIN: 01-400-3747
In stock
NSN: 5331-01-400-3747
FSC Code: 5331
MPN: C140050

5331-01-207-0257 (RNG112)

NIIN: 01-207-0257
In stock
NSN: 5331-01-207-0257
FSC Code: 5331
MPN: RNG112

5331-01-109-1281 (RNG-130)

NIIN: 01-109-1281
In stock
NSN: 5331-01-109-1281
FSC Code: 5331
MPN: RNG130

5331-00-881-3443 (RNG105)

NIIN: 00-881-3443
In stock
NSN: 5331-00-881-3443
FSC Code: 5331
MPN: RNG105

5331-01-400-3748 (C140.022)

NIIN: 01-400-3748
In stock
NSN: 5331-01-400-3748
FSC Code: 5331
MPN: C140022

5331-00-983-2887 (RNG1291)

NIIN: 00-983-2887
In stock
NSN: 5331-00-983-2887
FSC Code: 5331
MPN: RNG1291

5331-00-782-0067 (RNG00505)

NIIN: 00-782-0067
In stock
NSN: 5331-00-782-0067
FSC Code: 5331
MPN: RNG00505

5331-00-790-9622 (RNG)

NIIN: 00-790-9622
In stock
NSN: 5331-00-790-9622
FSC Code: 5331
MPN: RNG

5331-00-948-9948 (RNG-10)

NIIN: 00-948-9948
In stock
NSN: 5331-00-948-9948
FSC Code: 5331
MPN: RNG10

5331-01-352-7481 (C13379)

NIIN: 01-352-7481
In stock
NSN: 5331-01-352-7481
FSC Code: 5331
MPN: C13379

5331-01-369-5828 (C13373)

NIIN: 01-369-5828
In stock
NSN: 5331-01-369-5828
FSC Code: 5331
MPN: C13373

5331-01-369-5827 (C13373)

NIIN: 01-369-5827
In stock
NSN: 5331-01-369-5827
FSC Code: 5331
MPN: C13373

5331-01-439-8906 (C-125100MAPC54-5)

NIIN: 01-439-8906
In stock
NSN: 5331-01-439-8906
FSC Code: 5331
MPN: C125100MAPC545

5331-01-439-7786 (C-125100MAPC54-2)

NIIN: 01-439-7786
In stock
NSN: 5331-01-439-7786
FSC Code: 5331
MPN: C125100MAPC542

5331-01-439-7787 (C-125100MAPC54-3)

NIIN: 01-439-7787
In stock
NSN: 5331-01-439-7787
FSC Code: 5331
MPN: C125100MAPC543

5331-01-439-8905 (C-125100MAPC54-4)

NIIN: 01-439-8905
In stock
NSN: 5331-01-439-8905
FSC Code: 5331
MPN: C125100MAPC544

5331-01-439-8908 (C-125100MAPC31)

NIIN: 01-439-8908
In stock
NSN: 5331-01-439-8908
FSC Code: 5331
MPN: C125100MAPC31

5331-01-424-1444 (C1076)

NIIN: 01-424-1444
In stock
NSN: 5331-01-424-1444
FSC Code: 5331
MPN: C1076

5331-01-440-6521 (C-106900PA)

NIIN: 01-440-6521
In stock
NSN: 5331-01-440-6521
FSC Code: 5331
MPN: C106900PA

5331-01-440-6509 (C-1068900PA)

NIIN: 01-440-6509
In stock
NSN: 5331-01-440-6509
FSC Code: 5331
MPN: C1068900PA

5331-01-397-8780 (C1065-1-3/4)

NIIN: 01-397-8780
In stock
NSN: 5331-01-397-8780
FSC Code: 5331
MPN: C1065134

5331-01-569-3140 (C104918)

NIIN: 01-569-3140
In stock
NSN: 5331-01-569-3140
FSC Code: 5331
MPN: C104918

5331-01-569-3184 (C104918)

NIIN: 01-569-3184
In stock
NSN: 5331-01-569-3184
FSC Code: 5331
MPN: C104918

5331-01-569-3157 (C104918)

NIIN: 01-569-3157
In stock
NSN: 5331-01-569-3157
FSC Code: 5331
MPN: C104918

5331-01-126-0084 (RK5592-1)

NIIN: 01-126-0084
In stock
NSN: 5331-01-126-0084
FSC Code: 5331
MPN: RK55921

5331-01-134-4146 (RK5592-2)

NIIN: 01-134-4146
In stock
NSN: 5331-01-134-4146
FSC Code: 5331
MPN: RK55922

5331-01-569-3162 (C104918)

NIIN: 01-569-3162
In stock
NSN: 5331-01-569-3162
FSC Code: 5331
MPN: C104918

5331-01-569-3173 (C104918)

NIIN: 01-569-3173
In stock
NSN: 5331-01-569-3173
FSC Code: 5331
MPN: C104918