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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.

5331-01-501-4297 (5331PL0658579)

NIIN: 01-501-4297
In stock
NSN: 5331-01-501-4297
FSC Code: 5331
MPN: 5331PL0658579

5331-01-506-0220 (290L047)

NIIN: 01-506-0220
In stock
NSN: 5331-01-506-0220
FSC Code: 5331
MPN: 290L047

5331-01-246-9403 (672-01)

NIIN: 01-246-9403
In stock
NSN: 5331-01-246-9403
FSC Code: 5331
MPN: 67201

5331-01-277-0171 (671B2555)

NIIN: 01-277-0171
In stock
NSN: 5331-01-277-0171
FSC Code: 5331
MPN: 671B2555

5331-01-317-9512 (672.1261.069)

NIIN: 01-317-9512
In stock
NSN: 5331-01-317-9512
FSC Code: 5331
MPN: 6721261069

5331-01-205-5035 (671J598)

NIIN: 01-205-5035
In stock
NSN: 5331-01-205-5035
FSC Code: 5331
MPN: 671J598

5331-01-342-7782 (B29050-16)

NIIN: 01-342-7782
In stock
NSN: 5331-01-342-7782
FSC Code: 5331
MPN: B2905016

5331-00-003-5462 (67-149N2)

NIIN: 00-003-5462
In stock
NSN: 5331-00-003-5462
FSC Code: 5331
MPN: 67149N2

5331-01-068-7335 (67135A)

NIIN: 01-068-7335
In stock
NSN: 5331-01-068-7335
FSC Code: 5331
MPN: 67135A

5331-01-286-5952 (6711574-965)

NIIN: 01-286-5952
In stock
NSN: 5331-01-286-5952
FSC Code: 5331
MPN: 6711574965

5331-01-321-3417 (671-10016)

NIIN: 01-321-3417
In stock
NSN: 5331-01-321-3417
FSC Code: 5331
MPN: 67110016

5331-01-200-1241 (671-10019)

NIIN: 01-200-1241
In stock
NSN: 5331-01-200-1241
FSC Code: 5331
MPN: 67110019

5331-01-200-1242 (671-10014)

NIIN: 01-200-1242
In stock
NSN: 5331-01-200-1242
FSC Code: 5331
MPN: 67110014

5331-01-032-4170 (671-00910)

NIIN: 01-032-4170
In stock
NSN: 5331-01-032-4170
FSC Code: 5331
MPN: 67100910

5331-01-012-9801 (671-00904-Z)

NIIN: 01-012-9801
In stock
NSN: 5331-01-012-9801
FSC Code: 5331
MPN: 67100904Z

5331-01-174-0214 (671-00447)

NIIN: 01-174-0214
In stock
NSN: 5331-01-174-0214
FSC Code: 5331
MPN: 67100447

5331-01-132-0922 (671-00906)

NIIN: 01-132-0922
In stock
NSN: 5331-01-132-0922
FSC Code: 5331
MPN: 67100906

5331-01-008-0420 (671-00902-Z)

NIIN: 01-008-0420
In stock
NSN: 5331-01-008-0420
FSC Code: 5331
MPN: 67100902Z

5331-00-118-9147 (671-00248)

NIIN: 00-118-9147
In stock
NSN: 5331-00-118-9147
FSC Code: 5331
MPN: 67100248

5331-01-229-5144 (671-00265)

NIIN: 01-229-5144
In stock
NSN: 5331-01-229-5144
FSC Code: 5331
MPN: 67100265

5331-01-342-7781 (A29020-14)

NIIN: 01-342-7781
In stock
NSN: 5331-01-342-7781
FSC Code: 5331
MPN: A2902014

5331-01-226-4434 (671-00251)

NIIN: 01-226-4434
In stock
NSN: 5331-01-226-4434
FSC Code: 5331
MPN: 67100251

5331-01-040-4597 (671-00326)

NIIN: 01-040-4597
In stock
NSN: 5331-01-040-4597
FSC Code: 5331
MPN: 67100326

5331-01-343-2650 (A29020-16)

NIIN: 01-343-2650
In stock
NSN: 5331-01-343-2650
FSC Code: 5331
MPN: A2902016

5331-01-106-5875 (671-00257)

NIIN: 01-106-5875
In stock
NSN: 5331-01-106-5875
FSC Code: 5331
MPN: 67100257

5331-01-346-3486 (2902-001)

NIIN: 01-346-3486
In stock
NSN: 5331-01-346-3486
FSC Code: 5331
MPN: 2902001

5331-01-119-8240 (671-00232)

NIIN: 01-119-8240
In stock
NSN: 5331-01-119-8240
FSC Code: 5331
MPN: 67100232

5331-01-005-3977 (671-00238)

NIIN: 01-005-3977
In stock
NSN: 5331-01-005-3977
FSC Code: 5331
MPN: 67100238

5331-00-439-1488 (671-00231)

NIIN: 00-439-1488
In stock
NSN: 5331-00-439-1488
FSC Code: 5331
MPN: 67100231

5331-01-230-7688 (671-00228-0)

NIIN: 01-230-7688
In stock
NSN: 5331-01-230-7688
FSC Code: 5331
MPN: 671002280

5331-00-400-7412 (671-00214-0)

NIIN: 00-400-7412
In stock
NSN: 5331-00-400-7412
FSC Code: 5331
MPN: 671002140

5331-00-400-7415 (671-00225)

NIIN: 00-400-7415
In stock
NSN: 5331-00-400-7415
FSC Code: 5331
MPN: 67100225

5331-00-865-9749 (671-00212)

NIIN: 00-865-9749
In stock
NSN: 5331-00-865-9749
FSC Code: 5331
MPN: 67100212

5331-00-433-8143 (671-00221)

NIIN: 00-433-8143
In stock
NSN: 5331-00-433-8143
FSC Code: 5331
MPN: 67100221

5331-00-439-1486 (671-00217)

NIIN: 00-439-1486
In stock
NSN: 5331-00-439-1486
FSC Code: 5331
MPN: 67100217

5331-00-433-8155 (671-00219-0)

NIIN: 00-433-8155
In stock
NSN: 5331-00-433-8155
FSC Code: 5331
MPN: 671002190

5331-00-454-0493 (671-00146)

NIIN: 00-454-0493
In stock
NSN: 5331-00-454-0493
FSC Code: 5331
MPN: 67100146

5331-00-433-8140 (671-00129)

NIIN: 00-433-8140
In stock
NSN: 5331-00-433-8140
FSC Code: 5331
MPN: 67100129

5331-01-128-5034 (671-00144)

NIIN: 01-128-5034
In stock
NSN: 5331-01-128-5034
FSC Code: 5331
MPN: 67100144

5331-01-132-0914 (671-00134)

NIIN: 01-132-0914
In stock
NSN: 5331-01-132-0914
FSC Code: 5331
MPN: 67100134

5331-00-433-8084 (671-00116)

NIIN: 00-433-8084
In stock
NSN: 5331-00-433-8084
FSC Code: 5331
MPN: 67100116

5331-01-128-4018 (671-00117)

NIIN: 01-128-4018
In stock
NSN: 5331-01-128-4018
FSC Code: 5331
MPN: 67100117

5331-00-845-4142 (671-00112)

NIIN: 00-845-4142
In stock
NSN: 5331-00-845-4142
FSC Code: 5331
MPN: 67100112

5331-00-400-7409 (671-00110)

NIIN: 00-400-7409
In stock
NSN: 5331-00-400-7409
FSC Code: 5331
MPN: 67100110

5331-01-036-9422 (671-00016)

NIIN: 01-036-9422
In stock
NSN: 5331-01-036-9422
FSC Code: 5331
MPN: 67100016

5331-01-070-7045 (671-00010)

NIIN: 01-070-7045
In stock
NSN: 5331-01-070-7045
FSC Code: 5331
MPN: 67100010

5331-00-057-9883 (671-00016)

NIIN: 00-057-9883
In stock
NSN: 5331-00-057-9883
FSC Code: 5331
MPN: 67100016

5331-01-019-4474 (671-00013-0)

NIIN: 01-019-4474
In stock
NSN: 5331-01-019-4474
FSC Code: 5331
MPN: 671000130