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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.

5331-01-481-8454 (853-07542-000)

NIIN: 01-481-8454
In stock
NSN: 5331-01-481-8454
FSC Code: 5331
MPN: 85307542000

5331-00-124-4436 (7239981P002)

NIIN: 00-124-4436
In stock
NSN: 5331-00-124-4436
FSC Code: 5331
MPN: 7239981P002

5331-00-074-2052 (7237695P001)

NIIN: 00-074-2052
In stock
NSN: 5331-00-074-2052
FSC Code: 5331
MPN: 7237695P001

5331-00-446-6534 (7237654P1)

NIIN: 00-446-6534
In stock
NSN: 5331-00-446-6534
FSC Code: 5331
MPN: 7237654P1

5331-00-107-7445 (723-7-2IN)

NIIN: 00-107-7445
In stock
NSN: 5331-00-107-7445
FSC Code: 5331
MPN: 72372IN

5331-00-107-7433 (723-7-1-1-4IN)

NIIN: 00-107-7433
In stock
NSN: 5331-00-107-7433
FSC Code: 5331
MPN: 7237114IN

5331-01-476-7587 (32-7964)

NIIN: 01-476-7587
In stock
NSN: 5331-01-476-7587
FSC Code: 5331
MPN: 327964

5331-01-074-1353 (722M2MS-987-P4)

NIIN: 01-074-1353
In stock
NSN: 5331-01-074-1353
FSC Code: 5331
MPN: 722M2MS987P4

5331-00-101-8610 (7222-110-569)

NIIN: 00-101-8610
In stock
NSN: 5331-00-101-8610
FSC Code: 5331
MPN: 7222110569

5331-01-275-5902 (722-2021-000PC67)

NIIN: 01-275-5902
In stock
NSN: 5331-01-275-5902
FSC Code: 5331
MPN: 7222021000PC67

5331-01-411-0595 (3-26-HOF)

NIIN: 01-411-0595
In stock
NSN: 5331-01-411-0595
FSC Code: 5331
MPN: 326HOF

5331-01-075-0915 (7-2-201-1)

NIIN: 01-075-0915
In stock
NSN: 5331-01-075-0915
FSC Code: 5331
MPN: 722011

5331-01-250-1381 (722-0114-000)

NIIN: 01-250-1381
In stock
NSN: 5331-01-250-1381
FSC Code: 5331
MPN: 7220114000

5331-01-371-2376 (32-630-079)

NIIN: 01-371-2376
In stock
NSN: 5331-01-371-2376
FSC Code: 5331
MPN: 32630079

5331-01-375-4290 (32-630-070)

NIIN: 01-375-4290
In stock
NSN: 5331-01-375-4290
FSC Code: 5331
MPN: 32630070

5331-01-371-2375 (32-630-292)

NIIN: 01-371-2375
In stock
NSN: 5331-01-371-2375
FSC Code: 5331
MPN: 32630292

5331-01-383-3703 (32-630-260)

NIIN: 01-383-3703
In stock
NSN: 5331-01-383-3703
FSC Code: 5331
MPN: 32630260

5331-01-194-2802 (7219FT-160-5770)

NIIN: 01-194-2802
In stock
NSN: 5331-01-194-2802
FSC Code: 5331
MPN: 7219FT1605770

5331-01-062-6410 (7-217-9)

NIIN: 01-062-6410
In stock
NSN: 5331-01-062-6410
FSC Code: 5331
MPN: 72179

5331-01-521-6767 (326067-2)

NIIN: 01-521-6767
In stock
NSN: 5331-01-521-6767
FSC Code: 5331
MPN: 3260672

5331-01-521-6715 (326067-1)

NIIN: 01-521-6715
In stock
NSN: 5331-01-521-6715
FSC Code: 5331
MPN: 3260671

5331-01-392-5756 (3260044-001)

NIIN: 01-392-5756
In stock
NSN: 5331-01-392-5756
FSC Code: 5331
MPN: 3260044001

5331-01-085-2784 (720V108)

NIIN: 01-085-2784
In stock
NSN: 5331-01-085-2784
FSC Code: 5331
MPN: 720V108

5331-01-503-0147 (3255811-7)

NIIN: 01-503-0147
In stock
NSN: 5331-01-503-0147
FSC Code: 5331
MPN: 32558117

5331-00-238-7835 (7208X248)

NIIN: 00-238-7835
In stock
NSN: 5331-00-238-7835
FSC Code: 5331
MPN: 7208X248

5331-01-503-1097 (3255811-5)

NIIN: 01-503-1097
In stock
NSN: 5331-01-503-1097
FSC Code: 5331
MPN: 32558115

5331-01-043-6349 (720752-62)

NIIN: 01-043-6349
In stock
NSN: 5331-01-043-6349
FSC Code: 5331
MPN: 72075262

5331-01-168-5503 (720752-67)

NIIN: 01-168-5503
In stock
NSN: 5331-01-168-5503
FSC Code: 5331
MPN: 72075267

5331-01-306-5833 (720752-69)

NIIN: 01-306-5833
In stock
NSN: 5331-01-306-5833
FSC Code: 5331
MPN: 72075269

5331-00-392-2520 (720752-34)

NIIN: 00-392-2520
In stock
NSN: 5331-00-392-2520
FSC Code: 5331
MPN: 72075234

5331-01-210-7461 (720752-68)

NIIN: 01-210-7461
In stock
NSN: 5331-01-210-7461
FSC Code: 5331
MPN: 72075268

5331-01-035-9562 (720752-41)

NIIN: 01-035-9562
In stock
NSN: 5331-01-035-9562
FSC Code: 5331
MPN: 72075241

5331-01-216-2642 (720738-1)

NIIN: 01-216-2642
In stock
NSN: 5331-01-216-2642
FSC Code: 5331
MPN: 7207381

5331-00-239-8431 (720752-40)

NIIN: 00-239-8431
In stock
NSN: 5331-00-239-8431
FSC Code: 5331
MPN: 72075240

5331-00-127-0560 (720752-23)

NIIN: 00-127-0560
In stock
NSN: 5331-00-127-0560
FSC Code: 5331
MPN: 72075223

5331-00-897-4761 (7203617P1)

NIIN: 00-897-4761
In stock
NSN: 5331-00-897-4761
FSC Code: 5331
MPN: 7203617P1

5331-01-270-1267 (72-022F953-70)

NIIN: 01-270-1267
In stock
NSN: 5331-01-270-1267
FSC Code: 5331
MPN: 72022F95370

5331-01-213-8346 (72-029N756-75)

NIIN: 01-213-8346
In stock
NSN: 5331-01-213-8346
FSC Code: 5331
MPN: 72029N75675

5331-00-291-7377 (7202728P1)

NIIN: 00-291-7377
In stock
NSN: 5331-00-291-7377
FSC Code: 5331
MPN: 7202728P1

5331-01-407-1718 (3798347-14)

NIIN: 01-407-1718
In stock
NSN: 5331-01-407-1718
FSC Code: 5331
MPN: 379834714

5331-01-420-8225 (3798350-13)

NIIN: 01-420-8225
In stock
NSN: 5331-01-420-8225
FSC Code: 5331
MPN: 379835013

5331-01-389-8185 (3251455-608)

NIIN: 01-389-8185
In stock
NSN: 5331-01-389-8185
FSC Code: 5331
MPN: 3251455608

5331-01-389-8140 (3251455-010)

NIIN: 01-389-8140
In stock
NSN: 5331-01-389-8140
FSC Code: 5331
MPN: 3251455010

5331-01-426-0003 (32-5082E62)

NIIN: 01-426-0003
In stock
NSN: 5331-01-426-0003
FSC Code: 5331
MPN: 325082E62

5331-01-426-0001 (32-5082-E80)

NIIN: 01-426-0001
In stock
NSN: 5331-01-426-0001
FSC Code: 5331
MPN: 325082E80

5331-01-426-0005 (3205082E61)

NIIN: 01-426-0005
In stock
NSN: 5331-01-426-0005
FSC Code: 5331
MPN: 3205082E61

5331-01-426-0002 (3205082E59)

NIIN: 01-426-0002
In stock
NSN: 5331-01-426-0002
FSC Code: 5331
MPN: 3205082E59

5331-01-426-0004 (3205082E58)

NIIN: 01-426-0004
In stock
NSN: 5331-01-426-0004
FSC Code: 5331
MPN: 3205082E58