Skip to content

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.

5331-01-050-1538 (10163367)

NIIN: 01-050-1538
In stock
NSN: 5331-01-050-1538
FSC Code: 5331
MPN: 10163367

5331-01-088-6108 (10163372)

NIIN: 01-088-6108
In stock
NSN: 5331-01-088-6108
FSC Code: 5331
MPN: 10163372

5331-01-117-1075 (10163387)

NIIN: 01-117-1075
In stock
NSN: 5331-01-117-1075
FSC Code: 5331
MPN: 10163387

5331-01-107-4955 (10163381)

NIIN: 01-107-4955
In stock
NSN: 5331-01-107-4955
FSC Code: 5331
MPN: 10163381

5331-01-066-1921 (10163370)

NIIN: 01-066-1921
In stock
NSN: 5331-01-066-1921
FSC Code: 5331
MPN: 10163370

5331-01-101-8015 (10163378)

NIIN: 01-101-8015
In stock
NSN: 5331-01-101-8015
FSC Code: 5331
MPN: 10163378

5331-01-100-0639 (10163377)

NIIN: 01-100-0639
In stock
NSN: 5331-01-100-0639
FSC Code: 5331
MPN: 10163377

5331-01-110-1412 (10163384)

NIIN: 01-110-1412
In stock
NSN: 5331-01-110-1412
FSC Code: 5331
MPN: 10163384

5331-01-107-4950 (10163380)

NIIN: 01-107-4950
In stock
NSN: 5331-01-107-4950
FSC Code: 5331
MPN: 10163380

5331-01-119-0468 (10163390)

NIIN: 01-119-0468
In stock
NSN: 5331-01-119-0468
FSC Code: 5331
MPN: 10163390

5331-01-118-8627 (10163388)

NIIN: 01-118-8627
In stock
NSN: 5331-01-118-8627
FSC Code: 5331
MPN: 10163388

5331-01-119-1627 (10163392)

NIIN: 01-119-1627
In stock
NSN: 5331-01-119-1627
FSC Code: 5331
MPN: 10163392

5331-01-119-5932 (10163396)

NIIN: 01-119-5932
In stock
NSN: 5331-01-119-5932
FSC Code: 5331
MPN: 10163396

5331-01-127-4220 (10163406)

NIIN: 01-127-4220
In stock
NSN: 5331-01-127-4220
FSC Code: 5331
MPN: 10163406

5331-01-114-4936 (10163385)

NIIN: 01-114-4936
In stock
NSN: 5331-01-114-4936
FSC Code: 5331
MPN: 10163385

5331-01-120-1450 (10163397)

NIIN: 01-120-1450
In stock
NSN: 5331-01-120-1450
FSC Code: 5331
MPN: 10163397

5331-01-122-7700 (10163399)

NIIN: 01-122-7700
In stock
NSN: 5331-01-122-7700
FSC Code: 5331
MPN: 10163399

5331-01-127-4223 (10163409)

NIIN: 01-127-4223
In stock
NSN: 5331-01-127-4223
FSC Code: 5331
MPN: 10163409

5331-01-118-9505 (10163389)

NIIN: 01-118-9505
In stock
NSN: 5331-01-118-9505
FSC Code: 5331
MPN: 10163389

5331-01-119-5931 (10163395)

NIIN: 01-119-5931
In stock
NSN: 5331-01-119-5931
FSC Code: 5331
MPN: 10163395

5331-01-125-5082 (10163402)

NIIN: 01-125-5082
In stock
NSN: 5331-01-125-5082
FSC Code: 5331
MPN: 10163402

5331-01-122-5491 (10163398)

NIIN: 01-122-5491
In stock
NSN: 5331-01-122-5491
FSC Code: 5331
MPN: 10163398

5331-01-119-4401 (10163394)

NIIN: 01-119-4401
In stock
NSN: 5331-01-119-4401
FSC Code: 5331
MPN: 10163394

5331-01-127-4219 (10163405)

NIIN: 01-127-4219
In stock
NSN: 5331-01-127-4219
FSC Code: 5331
MPN: 10163405

5331-01-129-2005 (10163414)

NIIN: 01-129-2005
In stock
NSN: 5331-01-129-2005
FSC Code: 5331
MPN: 10163414

5331-01-123-3719 (10163401)

NIIN: 01-123-3719
In stock
NSN: 5331-01-123-3719
FSC Code: 5331
MPN: 10163401

5331-01-127-4221 (10163407)

NIIN: 01-127-4221
In stock
NSN: 5331-01-127-4221
FSC Code: 5331
MPN: 10163407

5331-01-128-5182 (10163413)

NIIN: 01-128-5182
In stock
NSN: 5331-01-128-5182
FSC Code: 5331
MPN: 10163413

5331-01-127-7120 (10163411)

NIIN: 01-127-7120
In stock
NSN: 5331-01-127-7120
FSC Code: 5331
MPN: 10163411

5331-01-129-9438 (10163420)

NIIN: 01-129-9438
In stock
NSN: 5331-01-129-9438
FSC Code: 5331
MPN: 10163420

5331-01-127-4222 (10163408)

NIIN: 01-127-4222
In stock
NSN: 5331-01-127-4222
FSC Code: 5331
MPN: 10163408

5331-01-127-4224 (10163410)

NIIN: 01-127-4224
In stock
NSN: 5331-01-127-4224
FSC Code: 5331
MPN: 10163410

5331-01-125-6269 (10163404)

NIIN: 01-125-6269
In stock
NSN: 5331-01-125-6269
FSC Code: 5331
MPN: 10163404

5331-01-129-6789 (10163416)

NIIN: 01-129-6789
In stock
NSN: 5331-01-129-6789
FSC Code: 5331
MPN: 10163416

5331-01-133-4717 (10163425)

NIIN: 01-133-4717
In stock
NSN: 5331-01-133-4717
FSC Code: 5331
MPN: 10163425

5331-01-129-6962 (10163417)

NIIN: 01-129-6962
In stock
NSN: 5331-01-129-6962
FSC Code: 5331
MPN: 10163417

5331-01-123-3299 (10163400)

NIIN: 01-123-3299
In stock
NSN: 5331-01-123-3299
FSC Code: 5331
MPN: 10163400

5331-01-130-4146 (10163422)

NIIN: 01-130-4146
In stock
NSN: 5331-01-130-4146
FSC Code: 5331
MPN: 10163422

5331-01-129-6788 (10163415)

NIIN: 01-129-6788
In stock
NSN: 5331-01-129-6788
FSC Code: 5331
MPN: 10163415

5331-01-136-4125 (10163428)

NIIN: 01-136-4125
In stock
NSN: 5331-01-136-4125
FSC Code: 5331
MPN: 10163428

5331-01-263-7381 (10163437)

NIIN: 01-263-7381
In stock
NSN: 5331-01-263-7381
FSC Code: 5331
MPN: 10163437

5331-01-129-7624 (10163418)

NIIN: 01-129-7624
In stock
NSN: 5331-01-129-7624
FSC Code: 5331
MPN: 10163418

5331-01-133-4719 (10163427)

NIIN: 01-133-4719
In stock
NSN: 5331-01-133-4719
FSC Code: 5331
MPN: 10163427

5331-01-136-4126 (10163429)

NIIN: 01-136-4126
In stock
NSN: 5331-01-136-4126
FSC Code: 5331
MPN: 10163429

5331-01-168-5502 (10163431)

NIIN: 01-168-5502
In stock
NSN: 5331-01-168-5502
FSC Code: 5331
MPN: 10163431

5331-01-172-7044 (10163432)

NIIN: 01-172-7044
In stock
NSN: 5331-01-172-7044
FSC Code: 5331
MPN: 10163432

5331-01-247-1696 (10163436)

NIIN: 01-247-1696
In stock
NSN: 5331-01-247-1696
FSC Code: 5331
MPN: 10163436

5331-01-133-4718 (10163426)

NIIN: 01-133-4718
In stock
NSN: 5331-01-133-4718
FSC Code: 5331
MPN: 10163426