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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.

5331-01-370-5663 (1331+024)

NIIN: 01-370-5663
In stock
NSN: 5331-01-370-5663
FSC Code: 5331
MPN: 1331024

5331-01-370-5664 (1331+020)

NIIN: 01-370-5664
In stock
NSN: 5331-01-370-5664
FSC Code: 5331
MPN: 1331020

5331-00-930-9270 (4025015-1)

NIIN: 00-930-9270
In stock
NSN: 5331-00-930-9270
FSC Code: 5331
MPN: 40250151

5331-01-474-8084 (13305989-001)

NIIN: 01-474-8084
In stock
NSN: 5331-01-474-8084
FSC Code: 5331
MPN: 13305989001

5331-01-452-1649 (2-359E1100-50)

NIIN: 01-452-1649
In stock
NSN: 5331-01-452-1649
FSC Code: 5331
MPN: 2359E110050

5331-01-392-8391 (132-VITON)

NIIN: 01-392-8391
In stock
NSN: 5331-01-392-8391
FSC Code: 5331
MPN: 132VITON

5331-12-195-0755 (700429132000)

NIIN: 12-195-0755
In stock
NSN: 5331-12-195-0755
FSC Code: 5331
MPN: 700429132000

5331-01-284-6655 (4022-20)

NIIN: 01-284-6655
In stock
NSN: 5331-01-284-6655
FSC Code: 5331
MPN: 402220

5331-01-408-2207 (1325PC16NON-ASBESTOS)

NIIN: 01-408-2207
In stock
NSN: 5331-01-408-2207
FSC Code: 5331
MPN: 1325PC16NONASBESTOS

5331-01-527-9615 (132-547)

NIIN: 01-527-9615
In stock
NSN: 5331-01-527-9615
FSC Code: 5331
MPN: 132547

5331-00-066-8115 (4019-32)

NIIN: 00-066-8115
In stock
NSN: 5331-00-066-8115
FSC Code: 5331
MPN: 401932

5331-00-816-9672 (40193-6)

NIIN: 00-816-9672
In stock
NSN: 5331-00-816-9672
FSC Code: 5331
MPN: 401936

5331-00-143-7138 (4019-59)

NIIN: 00-143-7138
In stock
NSN: 5331-00-143-7138
FSC Code: 5331
MPN: 401959

5331-00-817-8636 (40193-5)

NIIN: 00-817-8636
In stock
NSN: 5331-00-817-8636
FSC Code: 5331
MPN: 401935

5331-01-523-8956 (132-3056)

NIIN: 01-523-8956
In stock
NSN: 5331-01-523-8956
FSC Code: 5331
MPN: 1323056

5331-01-284-3726 (4018-00-0005-00-05)

NIIN: 01-284-3726
In stock
NSN: 5331-01-284-3726
FSC Code: 5331
MPN: 40180000050005

5331-01-282-5654 (4018-00-005-00-0-5)

NIIN: 01-282-5654
In stock
NSN: 5331-01-282-5654
FSC Code: 5331
MPN: 4018000050005

5331-01-490-0220 (1-322-23711)

NIIN: 01-490-0220
In stock
NSN: 5331-01-490-0220
FSC Code: 5331
MPN: 132223711

5331-01-242-0705 (4015-77)

NIIN: 01-242-0705
In stock
NSN: 5331-01-242-0705
FSC Code: 5331
MPN: 401577

5331-01-562-3705 (13215E8327-45)

NIIN: 01-562-3705
In stock
NSN: 5331-01-562-3705
FSC Code: 5331
MPN: 13215E832745

5331-01-455-2324 (13211669-2)

NIIN: 01-455-2324
In stock
NSN: 5331-01-455-2324
FSC Code: 5331
MPN: 132116692

5331-00-580-4137 (4014389-1)

NIIN: 00-580-4137
In stock
NSN: 5331-00-580-4137
FSC Code: 5331
MPN: 40143891

5331-99-801-7063 (BS1806-017)

NIIN: 99-801-7063
In stock
NSN: 5331-99-801-7063
FSC Code: 5331
MPN: BS1806017

5331-01-514-1167 (132-0293)

NIIN: 01-514-1167
In stock
NSN: 5331-01-514-1167
FSC Code: 5331
MPN: 1320293

5331-01-144-7375 (4013-49)

NIIN: 01-144-7375
In stock
NSN: 5331-01-144-7375
FSC Code: 5331
MPN: 401349

5331-01-550-5377 (1-3172-88)

NIIN: 01-550-5377
In stock
NSN: 5331-01-550-5377
FSC Code: 5331
MPN: 1317288

5331-01-247-1627 (4012BUNA477B)

NIIN: 01-247-1627
In stock
NSN: 5331-01-247-1627
FSC Code: 5331
MPN: 4012BUNA477B

5331-01-550-5398 (1-3172-88)

NIIN: 01-550-5398
In stock
NSN: 5331-01-550-5398
FSC Code: 5331
MPN: 1317288

5331-01-550-5388 (1-3172-88)

NIIN: 01-550-5388
In stock
NSN: 5331-01-550-5388
FSC Code: 5331
MPN: 1317288

5331-01-550-5396 (1-3172-88)

NIIN: 01-550-5396
In stock
NSN: 5331-01-550-5396
FSC Code: 5331
MPN: 1317288

5331-01-264-1007 (4012-53)

NIIN: 01-264-1007
In stock
NSN: 5331-01-264-1007
FSC Code: 5331
MPN: 401253

5331-01-512-8545 (13166PC11)

NIIN: 01-512-8545
In stock
NSN: 5331-01-512-8545
FSC Code: 5331
MPN: 13166PC11

5331-01-505-7708 (13165-30-0727)

NIIN: 01-505-7708
In stock
NSN: 5331-01-505-7708
FSC Code: 5331
MPN: 13165300727

5331-01-502-1549 (13163PC12)

NIIN: 01-502-1549
In stock
NSN: 5331-01-502-1549
FSC Code: 5331
MPN: 13163PC12

5331-01-242-0704 (4012-77)

NIIN: 01-242-0704
In stock
NSN: 5331-01-242-0704
FSC Code: 5331
MPN: 401277

5331-01-502-1986 (13164PC9)

NIIN: 01-502-1986
In stock
NSN: 5331-01-502-1986
FSC Code: 5331
MPN: 13164PC9

5331-01-502-1994 (13164PC8)

NIIN: 01-502-1994
In stock
NSN: 5331-01-502-1994
FSC Code: 5331
MPN: 13164PC8

5331-01-502-1552 (13161PC13)

NIIN: 01-502-1552
In stock
NSN: 5331-01-502-1552
FSC Code: 5331
MPN: 13161PC13

5331-01-502-3705 (13161PC6)

NIIN: 01-502-3705
In stock
NSN: 5331-01-502-3705
FSC Code: 5331
MPN: 13161PC6

5331-01-512-8551 (13161PC23)

NIIN: 01-512-8551
In stock
NSN: 5331-01-512-8551
FSC Code: 5331
MPN: 13161PC23

5331-01-502-3736 (13162PC33)

NIIN: 01-502-3736
In stock
NSN: 5331-01-502-3736
FSC Code: 5331
MPN: 13162PC33

5331-01-077-3820 (4012-32)

NIIN: 01-077-3820
In stock
NSN: 5331-01-077-3820
FSC Code: 5331
MPN: 401232

5331-01-237-9174 (4012-20)

NIIN: 01-237-9174
In stock
NSN: 5331-01-237-9174
FSC Code: 5331
MPN: 401220

5331-00-141-4233 (4011-53)

NIIN: 00-141-4233
In stock
NSN: 5331-00-141-4233
FSC Code: 5331
MPN: 401153

5331-01-540-3804 (13147PC25)

NIIN: 01-540-3804
In stock
NSN: 5331-01-540-3804
FSC Code: 5331
MPN: 13147PC25

5331-01-512-7895 (13146PC32)

NIIN: 01-512-7895
In stock
NSN: 5331-01-512-7895
FSC Code: 5331
MPN: 13146PC32

5331-01-287-5797 (40112B-11)

NIIN: 01-287-5797
In stock
NSN: 5331-01-287-5797
FSC Code: 5331
MPN: 40112B11

5331-01-077-3819 (4011-32)

NIIN: 01-077-3819
In stock
NSN: 5331-01-077-3819
FSC Code: 5331
MPN: 401132