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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.

5331-01-576-9540 (RL2516118)

NIIN: 01-576-9540
In stock
NSN: 5331-01-576-9540
FSC Code: 5331
MPN: RL2516118

5331-01-576-9401 (820-8225655-2)

NIIN: 01-576-9401
In stock
NSN: 5331-01-576-9401
FSC Code: 5331
MPN: 82082256552

5331-01-576-8642 (028-13063)

NIIN: 01-576-8642
In stock
NSN: 5331-01-576-8642
FSC Code: 5331
MPN: 02813063

5331-01-576-7838 (Y325-15)

NIIN: 01-576-7838
In stock
NSN: 5331-01-576-7838
FSC Code: 5331
MPN: Y32515

5331-01-576-5353 (PAI 1-368 3716)

NIIN: 01-576-5353
In stock
NSN: 5331-01-576-5353
FSC Code: 5331
MPN: PAI13683716

5331-01-577-4484 (0951612)

NIIN: 01-577-4484
In stock
NSN: 5331-01-577-4484
FSC Code: 5331
MPN: 0951612

5331-01-577-3943 (16133-2)

NIIN: 01-577-3943
In stock
NSN: 5331-01-577-3943
FSC Code: 5331
MPN: 161332

5331-01-576-6295 (15066-PM)

NIIN: 01-576-6295
In stock
NSN: 5331-01-576-6295
FSC Code: 5331
MPN: 15066PM

5331-01-576-5724 (4074270)

NIIN: 01-576-5724
In stock
NSN: 5331-01-576-5724
FSC Code: 5331
MPN: 4074270

5331-01-577-2722 (M-6462)

NIIN: 01-577-2722
In stock
NSN: 5331-01-577-2722
FSC Code: 5331
MPN: M6462

5331-01-577-2629 (221000700009)

NIIN: 01-577-2629
In stock
NSN: 5331-01-577-2629
FSC Code: 5331
MPN: 221000700009

5331-01-576-4824 (7260783-4)

NIIN: 01-576-4824
In stock
NSN: 5331-01-576-4824
FSC Code: 5331
MPN: 72607834

5331-01-577-4506 (3265054)

NIIN: 01-577-4506
In stock
NSN: 5331-01-577-4506
FSC Code: 5331
MPN: 3265054

5331-01-576-5964 (638067)

NIIN: 01-576-5964
In stock
NSN: 5331-01-576-5964
FSC Code: 5331
MPN: 638067

5331-01-576-4681 (8829-B ITEM 8)

NIIN: 01-576-4681
In stock
NSN: 5331-01-576-4681
FSC Code: 5331
MPN: 8829BITEM8

5331-01-576-4385 (SS3815-2)

NIIN: 01-576-4385
In stock
NSN: 5331-01-576-4385
FSC Code: 5331
MPN: SS38152

5331-01-576-6300 (Y240-23)

NIIN: 01-576-6300
In stock
NSN: 5331-01-576-6300
FSC Code: 5331
MPN: Y24023

5331-01-577-4473 (790541 ITEM NO3CP)

NIIN: 01-577-4473
In stock
NSN: 5331-01-577-4473
FSC Code: 5331
MPN: 790541ITEMNO3CP

5331-01-576-8583 (Y325-219)

NIIN: 01-576-8583
In stock
NSN: 5331-01-576-8583
FSC Code: 5331
MPN: Y325219

5331-01-577-3146 (26028)

NIIN: 01-577-3146
In stock
NSN: 5331-01-577-3146
FSC Code: 5331
MPN: 26028

5331-01-577-2630 (Y327-119)

NIIN: 01-577-2630
In stock
NSN: 5331-01-577-2630
FSC Code: 5331
MPN: Y327119

5331-01-577-2365 (N53910)

NIIN: 01-577-2365
In stock
NSN: 5331-01-577-2365
FSC Code: 5331
MPN: N53910

5331-01-576-7796 (6730623)

NIIN: 01-576-7796
In stock
NSN: 5331-01-576-7796
FSC Code: 5331
MPN: 6730623

5331-01-576-6323 (Y325-117)

NIIN: 01-576-6323
In stock
NSN: 5331-01-576-6323
FSC Code: 5331
MPN: Y325117

5331-01-577-0595 (5410163)

NIIN: 01-577-0595
In stock
NSN: 5331-01-577-0595
FSC Code: 5331
MPN: 5410163

5331-01-576-8684 (Y325-135)

NIIN: 01-576-8684
In stock
NSN: 5331-01-576-8684
FSC Code: 5331
MPN: Y325135

5331-01-576-5293 (5X1291)

NIIN: 01-576-5293
In stock
NSN: 5331-01-576-5293
FSC Code: 5331
MPN: 5X1291

5331-01-577-2639 (Y327-122)

NIIN: 01-577-2639
In stock
NSN: 5331-01-577-2639
FSC Code: 5331
MPN: Y327122

5331-01-577-2472 (221000700001)

NIIN: 01-577-2472
In stock
NSN: 5331-01-577-2472
FSC Code: 5331
MPN: 221000700001

5331-01-577-1105 (101-63800)

NIIN: 01-577-1105
In stock
NSN: 5331-01-577-1105
FSC Code: 5331
MPN: 10163800

5331-01-576-9482 (5X1343)

NIIN: 01-576-9482
In stock
NSN: 5331-01-576-9482
FSC Code: 5331
MPN: 5X1343

5331-01-576-6050 (5412757)

NIIN: 01-576-6050
In stock
NSN: 5331-01-576-6050
FSC Code: 5331
MPN: 5412757

5331-01-576-6012 (2-320-B70)

NIIN: 01-576-6012
In stock
NSN: 5331-01-576-6012
FSC Code: 5331
MPN: 2320B70

5331-01-576-2737 (AMS-P-83461)

NIIN: 01-576-2737
In stock
NSN: 5331-01-576-2737
FSC Code: 5331
MPN: AMSP83461

5331-01-576-2337 (62754-001)

NIIN: 01-576-2337
In stock
NSN: 5331-01-576-2337
FSC Code: 5331
MPN: 62754001

5331-01-575-9942 (2799116)

NIIN: 01-575-9942
In stock
NSN: 5331-01-575-9942
FSC Code: 5331
MPN: 2799116

5331-01-575-8215 (182852)

NIIN: 01-575-8215
In stock
NSN: 5331-01-575-8215
FSC Code: 5331
MPN: 182852

5331-01-576-5371 (N53905)

NIIN: 01-576-5371
In stock
NSN: 5331-01-576-5371
FSC Code: 5331
MPN: N53905

5331-01-576-3020 (4074T58P76)

NIIN: 01-576-3020
In stock
NSN: 5331-01-576-3020
FSC Code: 5331
MPN: 4074T58P76

5331-01-576-0611 (A3206673)

NIIN: 01-576-0611
In stock
NSN: 5331-01-576-0611
FSC Code: 5331
MPN: A3206673

5331-01-576-4850 (6068T58G38)

NIIN: 01-576-4850
In stock
NSN: 5331-01-576-4850
FSC Code: 5331
MPN: 6068T58G38

5331-01-575-6204 (750540508)

NIIN: 01-575-6204
In stock
NSN: 5331-01-575-6204
FSC Code: 5331
MPN: 750540508

5331-01-576-4411 (101-50250)

NIIN: 01-576-4411
In stock
NSN: 5331-01-576-4411
FSC Code: 5331
MPN: 10150250

5331-01-576-2781 (V219000-210-70FSB-RV)

NIIN: 01-576-2781
In stock
NSN: 5331-01-576-2781
FSC Code: 5331
MPN: V21900021070FSBRV

5331-01-576-2657 (Y325-319)

NIIN: 01-576-2657
In stock
NSN: 5331-01-576-2657
FSC Code: 5331
MPN: Y325319

5331-01-576-1613 (16-01000)

NIIN: 01-576-1613
In stock
NSN: 5331-01-576-1613
FSC Code: 5331
MPN: 1601000

5331-01-575-8384 (434729)

NIIN: 01-575-8384
In stock
NSN: 5331-01-575-8384
FSC Code: 5331
MPN: 434729

5331-01-575-4211 (EBV-B2-24-0002 DETAIL NO. 10)

NIIN: 01-575-4211
In stock
NSN: 5331-01-575-4211
FSC Code: 5331
MPN: EBVB2240002DETAILNO10