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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.

5331-01-510-8777 (MA3352C0280)

NIIN: 01-510-8777
In stock
NSN: 5331-01-510-8777
FSC Code: 5331
MPN: MA3352C0280

5331-01-497-4167 (MA3352C1180)

NIIN: 01-497-4167
In stock
NSN: 5331-01-497-4167
FSC Code: 5331
MPN: MA3352C1180

5331-01-499-3525 (MA3352B0170)

NIIN: 01-499-3525
In stock
NSN: 5331-01-499-3525
FSC Code: 5331
MPN: MA3352B0170

5331-01-507-9597 (MA3434A0140)

NIIN: 01-507-9597
In stock
NSN: 5331-01-507-9597
FSC Code: 5331
MPN: MA3434A0140

5331-01-510-8779 (MA3352C0387)

NIIN: 01-510-8779
In stock
NSN: 5331-01-510-8779
FSC Code: 5331
MPN: MA3352C0387

5331-01-475-6367 (MA3352C1180)

NIIN: 01-475-6367
In stock
NSN: 5331-01-475-6367
FSC Code: 5331
MPN: MA3352C1180

5331-01-509-7504 (MA3352B0690)

NIIN: 01-509-7504
In stock
NSN: 5331-01-509-7504
FSC Code: 5331
MPN: MA3352B0690

5331-01-499-3530 (MA3352B0950)

NIIN: 01-499-3530
In stock
NSN: 5331-01-499-3530
FSC Code: 5331
MPN: MA3352B0950

5331-01-499-3535 (MA3442A0060)

NIIN: 01-499-3535
In stock
NSN: 5331-01-499-3535
FSC Code: 5331
MPN: MA3442A0060

5331-01-507-9665 (MA3352B0437)

NIIN: 01-507-9665
In stock
NSN: 5331-01-507-9665
FSC Code: 5331
MPN: MA3352B0437

5331-01-509-7498 (MA3352B0224)

NIIN: 01-509-7498
In stock
NSN: 5331-01-509-7498
FSC Code: 5331
MPN: MA3352B0224

5331-01-533-7875 (MA3352B1400)

NIIN: 01-533-7875
In stock
NSN: 5331-01-533-7875
FSC Code: 5331
MPN: MA3352B1400

5331-01-507-9663 (MA3352B0250)

NIIN: 01-507-9663
In stock
NSN: 5331-01-507-9663
FSC Code: 5331
MPN: MA3352B0250

5331-01-507-9599 (MA3352B0425)

NIIN: 01-507-9599
In stock
NSN: 5331-01-507-9599
FSC Code: 5331
MPN: MA3352B0425

5331-01-499-3527 (MA3352B0515)

NIIN: 01-499-3527
In stock
NSN: 5331-01-499-3527
FSC Code: 5331
MPN: MA3352B0515

5331-01-533-7874 (MA3352B2500)

NIIN: 01-533-7874
In stock
NSN: 5331-01-533-7874
FSC Code: 5331
MPN: MA3352B2500

5331-01-507-9594 (MA3352B0300)

NIIN: 01-507-9594
In stock
NSN: 5331-01-507-9594
FSC Code: 5331
MPN: MA3352B0300

5331-01-507-9593 (MA3352B0258)

NIIN: 01-507-9593
In stock
NSN: 5331-01-507-9593
FSC Code: 5331
MPN: MA3352B0258

5331-01-499-3534 (MA3352B0345)

NIIN: 01-499-3534
In stock
NSN: 5331-01-499-3534
FSC Code: 5331
MPN: MA3352B0345

5331-01-509-7513 (MA3352B0670)

NIIN: 01-509-7513
In stock
NSN: 5331-01-509-7513
FSC Code: 5331
MPN: MA3352B0670

5331-01-507-9595 (MA3352B0450)

NIIN: 01-507-9595
In stock
NSN: 5331-01-507-9595
FSC Code: 5331
MPN: MA3352B0450

5331-01-509-7497 (MA3352B0180)

NIIN: 01-509-7497
In stock
NSN: 5331-01-509-7497
FSC Code: 5331
MPN: MA3352B0180

5331-01-507-9600 (MA3352B0475)

NIIN: 01-507-9600
In stock
NSN: 5331-01-507-9600
FSC Code: 5331
MPN: MA3352B0475

5331-01-499-3528 (MA3352B0150)

NIIN: 01-499-3528
In stock
NSN: 5331-01-499-3528
FSC Code: 5331
MPN: MA3352B0150

5331-01-507-9596 (MA3352B0400)

NIIN: 01-507-9596
In stock
NSN: 5331-01-507-9596
FSC Code: 5331
MPN: MA3352B0400

5331-01-509-7512 (MA3352B0600)

NIIN: 01-509-7512
In stock
NSN: 5331-01-509-7512
FSC Code: 5331
MPN: MA3352B0600

5331-01-499-3526 (MA3352B0200)

NIIN: 01-499-3526
In stock
NSN: 5331-01-499-3526
FSC Code: 5331
MPN: MA3352B0200

5331-01-507-9592 (MA3352B0190)

NIIN: 01-507-9592
In stock
NSN: 5331-01-507-9592
FSC Code: 5331
MPN: MA3352B0190

5331-01-507-9666 (MA3352B0545)

NIIN: 01-507-9666
In stock
NSN: 5331-01-507-9666
FSC Code: 5331
MPN: MA3352B0545

5331-01-533-7872 (MA3352B0160)

NIIN: 01-533-7872
In stock
NSN: 5331-01-533-7872
FSC Code: 5331
MPN: MA3352B0160

5331-01-499-3532 (MA3352B0100)

NIIN: 01-499-3532
In stock
NSN: 5331-01-499-3532
FSC Code: 5331
MPN: MA3352B0100

5331-01-507-7554 (MA3352B0095)

NIIN: 01-507-7554
In stock
NSN: 5331-01-507-7554
FSC Code: 5331
MPN: MA3352B0095

5331-01-509-7510 (MA3352A0200)

NIIN: 01-509-7510
In stock
NSN: 5331-01-509-7510
FSC Code: 5331
MPN: MA3352A0200

5331-01-507-9591 (MA3352B0106)

NIIN: 01-507-9591
In stock
NSN: 5331-01-507-9591
FSC Code: 5331
MPN: MA3352B0106

5331-01-506-5355 (MA3352A0387)

NIIN: 01-506-5355
In stock
NSN: 5331-01-506-5355
FSC Code: 5331
MPN: MA3352A0387

5331-01-550-5344 (MA3352A0132)

NIIN: 01-550-5344
In stock
NSN: 5331-01-550-5344
FSC Code: 5331
MPN: MA3352A0132

5331-01-509-7502 (MA3352B0090)

NIIN: 01-509-7502
In stock
NSN: 5331-01-509-7502
FSC Code: 5331
MPN: MA3352B0090

5331-01-509-7503 (MA3352B0125)

NIIN: 01-509-7503
In stock
NSN: 5331-01-509-7503
FSC Code: 5331
MPN: MA3352B0125

5331-01-499-3529 (MA3352A0190)

NIIN: 01-499-3529
In stock
NSN: 5331-01-499-3529
FSC Code: 5331
MPN: MA3352A0190

5331-01-506-5354 (MA3352A0437)

NIIN: 01-506-5354
In stock
NSN: 5331-01-506-5354
FSC Code: 5331
MPN: MA3352A0437

5331-01-509-7501 (MA3352A0236)

NIIN: 01-509-7501
In stock
NSN: 5331-01-509-7501
FSC Code: 5331
MPN: MA3352A0236

5331-01-499-3521 (MA3352A0140)

NIIN: 01-499-3521
In stock
NSN: 5331-01-499-3521
FSC Code: 5331
MPN: MA3352A0140

5331-01-550-5347 (MA3352A0170)

NIIN: 01-550-5347
In stock
NSN: 5331-01-550-5347
FSC Code: 5331
MPN: MA3352A0170

5331-01-509-7500 (MA3352A0085)

NIIN: 01-509-7500
In stock
NSN: 5331-01-509-7500
FSC Code: 5331
MPN: MA3352A0085

5331-01-506-5358 (MA3352A0212)

NIIN: 01-506-5358
In stock
NSN: 5331-01-506-5358
FSC Code: 5331
MPN: MA3352A0212

5331-01-499-3522 (MA3352A0160)

NIIN: 01-499-3522
In stock
NSN: 5331-01-499-3522
FSC Code: 5331
MPN: MA3352A0160

5331-01-509-7509 (MA3352A0180)

NIIN: 01-509-7509
In stock
NSN: 5331-01-509-7509
FSC Code: 5331
MPN: MA3352A0180

5331-01-509-7496 (MA3352A0150)

NIIN: 01-509-7496
In stock
NSN: 5331-01-509-7496
FSC Code: 5331
MPN: MA3352A0150