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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.

5331-01-315-7103 (5331PL0658527)

NIIN: 01-315-7103
In stock
NSN: 5331-01-315-7103
FSC Code: 5331
MPN: 5331PL0658527

5331-00-159-1250 (5331PL0669775)

NIIN: 00-159-1250
In stock
NSN: 5331-00-159-1250
FSC Code: 5331
MPN: 5331PL0669775

5331-01-286-0792 (5331PL0658521)

NIIN: 01-286-0792
In stock
NSN: 5331-01-286-0792
FSC Code: 5331
MPN: 5331PL0658521

5331-01-372-4027 (1D237506382)

NIIN: 01-372-4027
In stock
NSN: 5331-01-372-4027
FSC Code: 5331
MPN: 1D237506382

5331-01-190-9553 (5331PL0658483)

NIIN: 01-190-9553
In stock
NSN: 5331-01-190-9553
FSC Code: 5331
MPN: 5331PL0658483

5331-01-315-7105 (5331PL0658530)

NIIN: 01-315-7105
In stock
NSN: 5331-01-315-7105
FSC Code: 5331
MPN: 5331PL0658530

5331-01-315-7104 (5331PL0658528)

NIIN: 01-315-7104
In stock
NSN: 5331-01-315-7104
FSC Code: 5331
MPN: 5331PL0658528

5331-01-158-5467 (5331PL0658343)

NIIN: 01-158-5467
In stock
NSN: 5331-01-158-5467
FSC Code: 5331
MPN: 5331PL0658343

5331-00-450-1913 (5331PL0660679)

NIIN: 00-450-1913
In stock
NSN: 5331-00-450-1913
FSC Code: 5331
MPN: 5331PL0660679

5331-01-194-4702 (5331PL0658489)

NIIN: 01-194-4702
In stock
NSN: 5331-01-194-4702
FSC Code: 5331
MPN: 5331PL0658489

5331-01-053-7658 (5331PL0658321)

NIIN: 01-053-7658
In stock
NSN: 5331-01-053-7658
FSC Code: 5331
MPN: 5331PL0658321

5331-01-331-3891 (5331PL0658586)

NIIN: 01-331-3891
In stock
NSN: 5331-01-331-3891
FSC Code: 5331
MPN: 5331PL0658586

5331-01-071-6500 (5331PL0658328)

NIIN: 01-071-6500
In stock
NSN: 5331-01-071-6500
FSC Code: 5331
MPN: 5331PL0658328

5331-01-329-3763 (5331PL0658533)

NIIN: 01-329-3763
In stock
NSN: 5331-01-329-3763
FSC Code: 5331
MPN: 5331PL0658533

5331-01-071-6499 (5331PL0658327)

NIIN: 01-071-6499
In stock
NSN: 5331-01-071-6499
FSC Code: 5331
MPN: 5331PL0658327

5331-01-276-4822 (5331PL0658517)

NIIN: 01-276-4822
In stock
NSN: 5331-01-276-4822
FSC Code: 5331
MPN: 5331PL0658517

5331-01-115-0774 (5331PL0658333)

NIIN: 01-115-0774
In stock
NSN: 5331-01-115-0774
FSC Code: 5331
MPN: 5331PL0658333

5331-01-053-7656 (5331PL0658319)

NIIN: 01-053-7656
In stock
NSN: 5331-01-053-7656
FSC Code: 5331
MPN: 5331PL0658319

5331-01-058-4010 (5331PL0658324)

NIIN: 01-058-4010
In stock
NSN: 5331-01-058-4010
FSC Code: 5331
MPN: 5331PL0658324

5331-01-175-3482 (5331PL0658345)

NIIN: 01-175-3482
In stock
NSN: 5331-01-175-3482
FSC Code: 5331
MPN: 5331PL0658345

5331-01-052-7672 (5331PL0658312)

NIIN: 01-052-7672
In stock
NSN: 5331-01-052-7672
FSC Code: 5331
MPN: 5331PL0658312

5331-01-007-1619 (5331PL0658294)

NIIN: 01-007-1619
In stock
NSN: 5331-01-007-1619
FSC Code: 5331
MPN: 5331PL0658294

5331-01-053-5748 (5331PL0658318)

NIIN: 01-053-5748
In stock
NSN: 5331-01-053-5748
FSC Code: 5331
MPN: 5331PL0658318

5331-00-414-2665 (5331PL0656958)

NIIN: 00-414-2665
In stock
NSN: 5331-00-414-2665
FSC Code: 5331
MPN: 5331PL0656958

5331-00-414-2697 (5331PL0656996)

NIIN: 00-414-2697
In stock
NSN: 5331-00-414-2697
FSC Code: 5331
MPN: 5331PL0656996

5331-01-053-5746 (5331PL0658314)

NIIN: 01-053-5746
In stock
NSN: 5331-01-053-5746
FSC Code: 5331
MPN: 5331PL0658314

5331-00-841-5777 (5331PL0657680)

NIIN: 00-841-5777
In stock
NSN: 5331-00-841-5777
FSC Code: 5331
MPN: 5331PL0657680

5331-00-242-0516 (5331PL0654970)

NIIN: 00-242-0516
In stock
NSN: 5331-00-242-0516
FSC Code: 5331
MPN: 5331PL0654970

5331-00-722-4995 (5331PL0657465)

NIIN: 00-722-4995
In stock
NSN: 5331-00-722-4995
FSC Code: 5331
MPN: 5331PL0657465

5331-00-527-7975 (5331PL0657018)

NIIN: 00-527-7975
In stock
NSN: 5331-00-527-7975
FSC Code: 5331
MPN: 5331PL0657018

5331-00-414-2807 (5331PL0656998)

NIIN: 00-414-2807
In stock
NSN: 5331-00-414-2807
FSC Code: 5331
MPN: 5331PL0656998

5331-01-053-7657 (5331PL0658320)

NIIN: 01-053-7657
In stock
NSN: 5331-01-053-7657
FSC Code: 5331
MPN: 5331PL0658320

5331-00-166-1097 (5331PL0653308)

NIIN: 00-166-1097
In stock
NSN: 5331-00-166-1097
FSC Code: 5331
MPN: 5331PL0653308

5331-00-527-7980 (5331PL0657023)

NIIN: 00-527-7980
In stock
NSN: 5331-00-527-7980
FSC Code: 5331
MPN: 5331PL0657023

5331-00-414-2672 (5331PL0656970)

NIIN: 00-414-2672
In stock
NSN: 5331-00-414-2672
FSC Code: 5331
MPN: 5331PL0656970

5331-01-007-1603 (5331PL0658291)

NIIN: 01-007-1603
In stock
NSN: 5331-01-007-1603
FSC Code: 5331
MPN: 5331PL0658291

5331-01-008-6808 (5331PL0206712)

NIIN: 01-008-6808
In stock
NSN: 5331-01-008-6808
FSC Code: 5331
MPN: 5331PL0206712

5331-00-199-7727 (5331PL0653318)

NIIN: 00-199-7727
In stock
NSN: 5331-00-199-7727
FSC Code: 5331
MPN: 5331PL0653318

5331-00-433-9210 (5331PL0657004)

NIIN: 00-433-9210
In stock
NSN: 5331-00-433-9210
FSC Code: 5331
MPN: 5331PL0657004

5331-00-288-1982 (5331PL0655022)

NIIN: 00-288-1982
In stock
NSN: 5331-00-288-1982
FSC Code: 5331
MPN: 5331PL0655022

5331-01-250-5264 (5331PL0166447)

NIIN: 01-250-5264
In stock
NSN: 5331-01-250-5264
FSC Code: 5331
MPN: 5331PL0166447

5331-00-118-6830 (5331PL0631378)

NIIN: 00-118-6830
In stock
NSN: 5331-00-118-6830
FSC Code: 5331
MPN: 5331PL0631378

5331-00-221-6178 (5331PL0654965)

NIIN: 00-221-6178
In stock
NSN: 5331-00-221-6178
FSC Code: 5331
MPN: 5331PL0654965

5331-00-443-7256 (5331PL0632201)

NIIN: 00-443-7256
In stock
NSN: 5331-00-443-7256
FSC Code: 5331
MPN: 5331PL0632201

5331-00-279-9404 (5331PL0655015)

NIIN: 00-279-9404
In stock
NSN: 5331-00-279-9404
FSC Code: 5331
MPN: 5331PL0655015

5331-00-922-5856 (5331PL0212452)

NIIN: 00-922-5856
In stock
NSN: 5331-00-922-5856
FSC Code: 5331
MPN: 5331PL0212452

5331-00-059-9821 (5331PL0631691)

NIIN: 00-059-9821
In stock
NSN: 5331-00-059-9821
FSC Code: 5331
MPN: 5331PL0631691

5331-01-044-2307 (5331PL0631633)

NIIN: 01-044-2307
In stock
NSN: 5331-01-044-2307
FSC Code: 5331
MPN: 5331PL0631633