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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.

5331-01-019-7367 (2668576-220)

NIIN: 01-019-7367
In stock
NSN: 5331-01-019-7367
FSC Code: 5331
MPN: 2668576220

5331-00-061-9121 (2668577-130)

NIIN: 00-061-9121
In stock
NSN: 5331-00-061-9121
FSC Code: 5331
MPN: 2668577130

5331-01-262-0057 (2668576-17)

NIIN: 01-262-0057
In stock
NSN: 5331-01-262-0057
FSC Code: 5331
MPN: 266857617

5331-01-263-6716 (2667999-99)

NIIN: 01-263-6716
In stock
NSN: 5331-01-263-6716
FSC Code: 5331
MPN: 266799999

5331-01-132-6535 (2667999-5)

NIIN: 01-132-6535
In stock
NSN: 5331-01-132-6535
FSC Code: 5331
MPN: 26679995

5331-01-220-3373 (2667998-6)

NIIN: 01-220-3373
In stock
NSN: 5331-01-220-3373
FSC Code: 5331
MPN: 26679986

5331-01-219-9075 (2667999-11)

NIIN: 01-219-9075
In stock
NSN: 5331-01-219-9075
FSC Code: 5331
MPN: 266799911

5331-01-227-0602 (2667998-7)

NIIN: 01-227-0602
In stock
NSN: 5331-01-227-0602
FSC Code: 5331
MPN: 26679987

5331-01-263-6715 (2667999-100)

NIIN: 01-263-6715
In stock
NSN: 5331-01-263-6715
FSC Code: 5331
MPN: 2667999100

5331-01-220-3379 (2667998-8)

NIIN: 01-220-3379
In stock
NSN: 5331-01-220-3379
FSC Code: 5331
MPN: 26679988

5331-01-129-5123 (2667998-24)

NIIN: 01-129-5123
In stock
NSN: 5331-01-129-5123
FSC Code: 5331
MPN: 266799824

5331-01-128-8197 (2667998-22)

NIIN: 01-128-8197
In stock
NSN: 5331-01-128-8197
FSC Code: 5331
MPN: 266799822

5331-01-128-8194 (2667998-141)

NIIN: 01-128-8194
In stock
NSN: 5331-01-128-8194
FSC Code: 5331
MPN: 2667998141

5331-01-128-8193 (2667998-139)

NIIN: 01-128-8193
In stock
NSN: 5331-01-128-8193
FSC Code: 5331
MPN: 2667998139

5331-01-129-1031 (2667998-132)

NIIN: 01-129-1031
In stock
NSN: 5331-01-129-1031
FSC Code: 5331
MPN: 2667998132

5331-01-128-8192 (2667998-138)

NIIN: 01-128-8192
In stock
NSN: 5331-01-128-8192
FSC Code: 5331
MPN: 2667998138

5331-01-220-3370 (2667998-135)

NIIN: 01-220-3370
In stock
NSN: 5331-01-220-3370
FSC Code: 5331
MPN: 2667998135

5331-01-128-8190 (2667998-133)

NIIN: 01-128-8190
In stock
NSN: 5331-01-128-8190
FSC Code: 5331
MPN: 2667998133

5331-01-219-9073 (2667998-134)

NIIN: 01-219-9073
In stock
NSN: 5331-01-219-9073
FSC Code: 5331
MPN: 2667998134

5331-01-128-8191 (2667998-137)

NIIN: 01-128-8191
In stock
NSN: 5331-01-128-8191
FSC Code: 5331
MPN: 2667998137

5331-01-129-1622 (2667998-128)

NIIN: 01-129-1622
In stock
NSN: 5331-01-129-1622
FSC Code: 5331
MPN: 2667998128

5331-01-129-1612 (2667998-129)

NIIN: 01-129-1612
In stock
NSN: 5331-01-129-1612
FSC Code: 5331
MPN: 2667998129

5331-01-129-7627 (2667998-126)

NIIN: 01-129-7627
In stock
NSN: 5331-01-129-7627
FSC Code: 5331
MPN: 2667998126

5331-01-128-8189 (2667998-125)

NIIN: 01-128-8189
In stock
NSN: 5331-01-128-8189
FSC Code: 5331
MPN: 2667998125

5331-01-128-8180 (2667648-7)

NIIN: 01-128-8180
In stock
NSN: 5331-01-128-8180
FSC Code: 5331
MPN: 26676487

5331-01-129-1621 (2667998-127)

NIIN: 01-129-1621
In stock
NSN: 5331-01-129-1621
FSC Code: 5331
MPN: 2667998127

5331-01-128-8207 (2667647-20)

NIIN: 01-128-8207
In stock
NSN: 5331-01-128-8207
FSC Code: 5331
MPN: 266764720

5331-01-187-3847 (2667997-22)

NIIN: 01-187-3847
In stock
NSN: 5331-01-187-3847
FSC Code: 5331
MPN: 266799722

5331-01-459-5235 (BG73703-24-01)

NIIN: 01-459-5235
In stock
NSN: 5331-01-459-5235
FSC Code: 5331
MPN: BG737032401

5331-01-128-8210 (2667647-8)

NIIN: 01-128-8210
In stock
NSN: 5331-01-128-8210
FSC Code: 5331
MPN: 26676478

5331-01-128-8208 (2667647-3)

NIIN: 01-128-8208
In stock
NSN: 5331-01-128-8208
FSC Code: 5331
MPN: 26676473

5331-00-997-3281 (2667647-3)

NIIN: 00-997-3281
In stock
NSN: 5331-00-997-3281
FSC Code: 5331
MPN: 26676473

5331-01-128-8203 (2667647-12)

NIIN: 01-128-8203
In stock
NSN: 5331-01-128-8203
FSC Code: 5331
MPN: 266764712

5331-01-128-8204 (2667647-16)

NIIN: 01-128-8204
In stock
NSN: 5331-01-128-8204
FSC Code: 5331
MPN: 266764716

5331-01-128-8205 (2667647-18)

NIIN: 01-128-8205
In stock
NSN: 5331-01-128-8205
FSC Code: 5331
MPN: 266764718

5331-01-128-8187 (2667647-10)

NIIN: 01-128-8187
In stock
NSN: 5331-01-128-8187
FSC Code: 5331
MPN: 266764710

5331-01-211-0452 (2667646-6)

NIIN: 01-211-0452
In stock
NSN: 5331-01-211-0452
FSC Code: 5331
MPN: 26676466

5331-01-219-5411 (2667646-9)

NIIN: 01-219-5411
In stock
NSN: 5331-01-219-5411
FSC Code: 5331
MPN: 26676469

5331-01-219-5410 (2667646-7)

NIIN: 01-219-5410
In stock
NSN: 5331-01-219-5410
FSC Code: 5331
MPN: 26676467

5331-01-305-6007 (2667646-4)

NIIN: 01-305-6007
In stock
NSN: 5331-01-305-6007
FSC Code: 5331
MPN: 26676464

5331-01-211-0458 (2667646-270)

NIIN: 01-211-0458
In stock
NSN: 5331-01-211-0458
FSC Code: 5331
MPN: 2667646270

5331-01-129-1626 (2667646-31)

NIIN: 01-129-1626
In stock
NSN: 5331-01-129-1626
FSC Code: 5331
MPN: 266764631

5331-01-128-8201 (2667646-27)

NIIN: 01-128-8201
In stock
NSN: 5331-01-128-8201
FSC Code: 5331
MPN: 266764627

5331-00-938-6849 (2667646-241)

NIIN: 00-938-6849
In stock
NSN: 5331-00-938-6849
FSC Code: 5331
MPN: 2667646241

5331-01-129-1616 (2667646-22)

NIIN: 01-129-1616
In stock
NSN: 5331-01-129-1616
FSC Code: 5331
MPN: 266764622

5331-01-211-0456 (2667646-237)

NIIN: 01-211-0456
In stock
NSN: 5331-01-211-0456
FSC Code: 5331
MPN: 2667646237

5331-01-211-0454 (2667646-140)

NIIN: 01-211-0454
In stock
NSN: 5331-01-211-0454
FSC Code: 5331
MPN: 2667646140

5331-01-131-0756 (2667646-125)

NIIN: 01-131-0756
In stock
NSN: 5331-01-131-0756
FSC Code: 5331
MPN: 2667646125