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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.

5331-01-616-8365 (89879)

NIIN: 01-616-8365
In stock
NSN: 5331-01-616-8365
FSC Code: 5331
MPN: 89879

5331-01-616-6546 (757463)

NIIN: 01-616-6546
In stock
NSN: 5331-01-616-6546
FSC Code: 5331
MPN: 757463

5331-01-617-4648 (FF013-16)

NIIN: 01-617-4648
In stock
NSN: 5331-01-617-4648
FSC Code: 5331
MPN: FF01316

5331-01-617-4561 (704433A)

NIIN: 01-617-4561
In stock
NSN: 5331-01-617-4561
FSC Code: 5331
MPN: 704433A

5331-01-617-2460 (MS29561-031)

NIIN: 01-617-2460
In stock
NSN: 5331-01-617-2460
FSC Code: 5331
MPN: MS29561031

5331-01-617-2034 (0000 252 9549)

NIIN: 01-617-2034
In stock
NSN: 5331-01-617-2034
FSC Code: 5331
MPN: 00002529549

5331-01-617-1482 (0804-0801-01 PC NO.66)

NIIN: 01-617-1482
In stock
NSN: 5331-01-617-1482
FSC Code: 5331
MPN: 0804080101PCNO66

5331-01-617-0746 (0401548)

NIIN: 01-617-0746
In stock
NSN: 5331-01-617-0746
FSC Code: 5331
MPN: 0401548

5331-01-616-9301 (35263-05)

NIIN: 01-616-9301
In stock
NSN: 5331-01-616-9301
FSC Code: 5331
MPN: 3526305

5331-01-616-8739 (1201T51)

NIIN: 01-616-8739
In stock
NSN: 5331-01-616-8739
FSC Code: 5331
MPN: 1201T51

5331-01-616-8625 (HT2804 REF S2H 5005)

NIIN: 01-616-8625
In stock
NSN: 5331-01-616-8625
FSC Code: 5331
MPN: HT2804REFS2H5005

5331-01-616-6742 (2-109 N70)

NIIN: 01-616-6742
In stock
NSN: 5331-01-616-6742
FSC Code: 5331
MPN: 2109N70

5331-01-616-6491 (457466)

NIIN: 01-616-6491
In stock
NSN: 5331-01-616-6491
FSC Code: 5331
MPN: 457466

5331-01-616-5722 (L1106-1-116)

NIIN: 01-616-5722
In stock
NSN: 5331-01-616-5722
FSC Code: 5331
MPN: L11061116

5331-01-616-4777 (9262K122)

NIIN: 01-616-4777
In stock
NSN: 5331-01-616-4777
FSC Code: 5331
MPN: 9262K122

5331-01-617-3576 (6843332-08)

NIIN: 01-617-3576
In stock
NSN: 5331-01-617-3576
FSC Code: 5331
MPN: 684333208

5331-01-617-1598 (121420-01760)

NIIN: 01-617-1598
In stock
NSN: 5331-01-617-1598
FSC Code: 5331
MPN: 12142001760

5331-01-617-1495 (20460 PC 12)

NIIN: 01-617-1495
In stock
NSN: 5331-01-617-1495
FSC Code: 5331
MPN: 20460PC12

5331-01-617-1479 (E1000-904)

NIIN: 01-617-1479
In stock
NSN: 5331-01-617-1479
FSC Code: 5331
MPN: E1000904

5331-01-617-0744 (0401549)

NIIN: 01-617-0744
In stock
NSN: 5331-01-617-0744
FSC Code: 5331
MPN: 0401549

5331-01-616-9427 (2099-823)

NIIN: 01-616-9427
In stock
NSN: 5331-01-616-9427
FSC Code: 5331
MPN: 2099823

5331-01-616-9294 (NMM200860-3)

NIIN: 01-616-9294
In stock
NSN: 5331-01-616-9294
FSC Code: 5331
MPN: NMM2008603

5331-01-616-8954 (9452K72)

NIIN: 01-616-8954
In stock
NSN: 5331-01-616-8954
FSC Code: 5331
MPN: 9452K72

5331-01-616-4758 (94115K020)

NIIN: 01-616-4758
In stock
NSN: 5331-01-616-4758
FSC Code: 5331
MPN: 94115K020

5331-01-616-4324 (LCU-MAX-1381-KIT)

NIIN: 01-616-4324
In stock
NSN: 5331-01-616-4324
FSC Code: 5331
MPN: LCUMAX1381KIT

5331-01-616-3314 (5233433-012)

NIIN: 01-616-3314
In stock
NSN: 5331-01-616-3314
FSC Code: 5331
MPN: 5233433012

5331-01-617-1941 (25-0427)

NIIN: 01-617-1941
In stock
NSN: 5331-01-617-1941
FSC Code: 5331
MPN: 250427

5331-01-617-1834 (53337)

NIIN: 01-617-1834
In stock
NSN: 5331-01-617-1834
FSC Code: 5331
MPN: 53337

5331-01-617-1382 (31223559)

NIIN: 01-617-1382
In stock
NSN: 5331-01-617-1382
FSC Code: 5331
MPN: 31223559

5331-01-616-8986 (112080)

NIIN: 01-616-8986
In stock
NSN: 5331-01-616-8986
FSC Code: 5331
MPN: 112080

5331-01-616-6691 (757459)

NIIN: 01-616-6691
In stock
NSN: 5331-01-616-6691
FSC Code: 5331
MPN: 757459

5331-01-616-6470 (757461)

NIIN: 01-616-6470
In stock
NSN: 5331-01-616-6470
FSC Code: 5331
MPN: 757461

5331-01-616-6225 (A-A-59588-2B80-904)

NIIN: 01-616-6225
In stock
NSN: 5331-01-616-6225
FSC Code: 5331
MPN: AA595882B80904

5331-01-616-3907 (57284)

NIIN: 01-616-3907
In stock
NSN: 5331-01-616-3907
FSC Code: 5331
MPN: 57284

5331-01-616-3651 (AS3581-158)

NIIN: 01-616-3651
In stock
NSN: 5331-01-616-3651
FSC Code: 5331
MPN: AS3581158

5331-01-617-0063 (4213-16)

NIIN: 01-617-0063
In stock
NSN: 5331-01-617-0063
FSC Code: 5331
MPN: 421316

5331-01-616-9776 (31218020)

NIIN: 01-616-9776
In stock
NSN: 5331-01-616-9776
FSC Code: 5331
MPN: 31218020

5331-01-616-9348 (120AZ0009)

NIIN: 01-616-9348
In stock
NSN: 5331-01-616-9348
FSC Code: 5331
MPN: 120AZ0009

5331-01-616-9349 (NMM200860-14)

NIIN: 01-616-9349
In stock
NSN: 5331-01-616-9349
FSC Code: 5331
MPN: NMM20086014

5331-01-616-9154 (BH172)

NIIN: 01-616-9154
In stock
NSN: 5331-01-616-9154
FSC Code: 5331
MPN: BH172

5331-01-616-8659 (AS3581-250)

NIIN: 01-616-8659
In stock
NSN: 5331-01-616-8659
FSC Code: 5331
MPN: AS3581250

5331-01-616-2322 (D50-0076 ITEMS 3,7,14,20,28)

NIIN: 01-616-2322
In stock
NSN: 5331-01-616-2322
FSC Code: 5331
MPN: D500076ITEMS37142028

5331-01-616-2297 (16-8334)

NIIN: 01-616-2297
In stock
NSN: 5331-01-616-2297
FSC Code: 5331
MPN: 168334

5331-01-616-1513 (MA3352B0069)

NIIN: 01-616-1513
In stock
NSN: 5331-01-616-1513
FSC Code: 5331
MPN: MA3352B0069

5331-01-616-7606 (KIT-R9383S)

NIIN: 01-616-7606
In stock
NSN: 5331-01-616-7606
FSC Code: 5331
MPN: KITR9383S

5331-01-616-6688 (2757462)

NIIN: 01-616-6688
In stock
NSN: 5331-01-616-6688
FSC Code: 5331
MPN: 2757462

5331-01-616-6505 (757465)

NIIN: 01-616-6505
In stock
NSN: 5331-01-616-6505
FSC Code: 5331
MPN: 757465

5331-01-616-4785 (1532J98 ITEM 16)

NIIN: 01-616-4785
In stock
NSN: 5331-01-616-4785
FSC Code: 5331
MPN: 1532J98ITEM16