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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.

5331-01-135-0122 (46C-7-8)

NIIN: 01-135-0122
In stock
NSN: 5331-01-135-0122
FSC Code: 5331
MPN: 46C78

5331-01-389-4148 (1621-001)

NIIN: 01-389-4148
In stock
NSN: 5331-01-389-4148
FSC Code: 5331
MPN: 1621001

5331-01-205-9780 (469482-4)

NIIN: 01-205-9780
In stock
NSN: 5331-01-205-9780
FSC Code: 5331
MPN: 4694824

5331-01-517-2294 (161K0228-5)

NIIN: 01-517-2294
In stock
NSN: 5331-01-517-2294
FSC Code: 5331
MPN: 161K02285

5331-01-517-2292 (161K0228-4)

NIIN: 01-517-2292
In stock
NSN: 5331-01-517-2292
FSC Code: 5331
MPN: 161K02284

5331-01-517-2295 (161K0228-6)

NIIN: 01-517-2295
In stock
NSN: 5331-01-517-2295
FSC Code: 5331
MPN: 161K02286

5331-00-966-7050 (4680-010)

NIIN: 00-966-7050
In stock
NSN: 5331-00-966-7050
FSC Code: 5331
MPN: 4680010

5331-01-529-1126 (161-7317963IT.74DET73-A)

NIIN: 01-529-1126
In stock
NSN: 5331-01-529-1126
FSC Code: 5331
MPN: 1617317963IT74DET73A

5331-01-068-1216 (4675681-6)

NIIN: 01-068-1216
In stock
NSN: 5331-01-068-1216
FSC Code: 5331
MPN: 46756816

5331-01-085-7777 (4674691-0007)

NIIN: 01-085-7777
In stock
NSN: 5331-01-085-7777
FSC Code: 5331
MPN: 46746910007

5331-01-505-4103 (161-6154)

NIIN: 01-505-4103
In stock
NSN: 5331-01-505-4103
FSC Code: 5331
MPN: 1616154

5331-01-534-9062 (161-6149)

NIIN: 01-534-9062
In stock
NSN: 5331-01-534-9062
FSC Code: 5331
MPN: 1616149

5331-00-684-2068 (4672-318REVDPC10)

NIIN: 00-684-2068
In stock
NSN: 5331-00-684-2068
FSC Code: 5331
MPN: 4672318REVDPC10

5331-01-468-5045 (16-152)

NIIN: 01-468-5045
In stock
NSN: 5331-01-468-5045
FSC Code: 5331
MPN: 16152

5331-01-039-1766 (4666834-7)

NIIN: 01-039-1766
In stock
NSN: 5331-01-039-1766
FSC Code: 5331
MPN: 46668347

5331-00-972-8726 (466-607)

NIIN: 00-972-8726
In stock
NSN: 5331-00-972-8726
FSC Code: 5331
MPN: 466607

5331-01-124-9022 (4664-288)

NIIN: 01-124-9022
In stock
NSN: 5331-01-124-9022
FSC Code: 5331
MPN: 4664288

5331-01-406-8429 (16133-12)

NIIN: 01-406-8429
In stock
NSN: 5331-01-406-8429
FSC Code: 5331
MPN: 1613312

5331-01-437-4516 (16-131-1)

NIIN: 01-437-4516
In stock
NSN: 5331-01-437-4516
FSC Code: 5331
MPN: 161311

5331-01-163-7627 (466-3621)

NIIN: 01-163-7627
In stock
NSN: 5331-01-163-7627
FSC Code: 5331
MPN: 4663621

5331-01-437-4525 (16-13101)

NIIN: 01-437-4525
In stock
NSN: 5331-01-437-4525
FSC Code: 5331
MPN: 1613101

5331-01-288-8985 (466-3164-2)

NIIN: 01-288-8985
In stock
NSN: 5331-01-288-8985
FSC Code: 5331
MPN: 46631642

5331-01-479-1493 (161-2161)

NIIN: 01-479-1493
In stock
NSN: 5331-01-479-1493
FSC Code: 5331
MPN: 1612161

5331-01-188-9441 (465597C1)

NIIN: 01-188-9441
In stock
NSN: 5331-01-188-9441
FSC Code: 5331
MPN: 465597C1

5331-01-311-5943 (4651UP37505250-500)

NIIN: 01-311-5943
In stock
NSN: 5331-01-311-5943
FSC Code: 5331
MPN: 4651UP37505250500

5331-01-336-5903 (4651-51-016)

NIIN: 01-336-5903
In stock
NSN: 5331-01-336-5903
FSC Code: 5331
MPN: 465151016

5331-01-336-5904 (4651-51-021)

NIIN: 01-336-5904
In stock
NSN: 5331-01-336-5904
FSC Code: 5331
MPN: 465151021

5331-01-336-5902 (4651-51-017)

NIIN: 01-336-5902
In stock
NSN: 5331-01-336-5902
FSC Code: 5331
MPN: 465151017

5331-01-336-7292 (4651-51-015)

NIIN: 01-336-7292
In stock
NSN: 5331-01-336-7292
FSC Code: 5331
MPN: 465151015

5331-01-547-9053 (16104350-004)

NIIN: 01-547-9053
In stock
NSN: 5331-01-547-9053
FSC Code: 5331
MPN: 16104350004

5331-01-530-8119 (16103662-001)

NIIN: 01-530-8119
In stock
NSN: 5331-01-530-8119
FSC Code: 5331
MPN: 16103662001

5331-01-095-1256 (4640-070S70)

NIIN: 01-095-1256
In stock
NSN: 5331-01-095-1256
FSC Code: 5331
MPN: 4640070S70

5331-00-841-2318 (464048R1)

NIIN: 00-841-2318
In stock
NSN: 5331-00-841-2318
FSC Code: 5331
MPN: 464048R1

5331-01-519-2886 (16101917-001)

NIIN: 01-519-2886
In stock
NSN: 5331-01-519-2886
FSC Code: 5331
MPN: 16101917001

5331-00-839-8029 (464-0028)

NIIN: 00-839-8029
In stock
NSN: 5331-00-839-8029
FSC Code: 5331
MPN: 4640028

5331-01-284-6654 (463-927-028-730-000)

NIIN: 01-284-6654
In stock
NSN: 5331-01-284-6654
FSC Code: 5331
MPN: 463927028730000

5331-01-305-0666 (463-927-141-730-000)

NIIN: 01-305-0666
In stock
NSN: 5331-01-305-0666
FSC Code: 5331
MPN: 463927141730000

5331-01-315-2134 (463-928-040-641-001)

NIIN: 01-315-2134
In stock
NSN: 5331-01-315-2134
FSC Code: 5331
MPN: 463928040641001

5331-01-305-0664 (463-928-360-641-001)

NIIN: 01-305-0664
In stock
NSN: 5331-01-305-0664
FSC Code: 5331
MPN: 463928360641001

5331-01-308-5856 (463-927-024-730-000)

NIIN: 01-308-5856
In stock
NSN: 5331-01-308-5856
FSC Code: 5331
MPN: 463927024730000

5331-01-315-2136 (463-927-021-730-000)

NIIN: 01-315-2136
In stock
NSN: 5331-01-315-2136
FSC Code: 5331
MPN: 463927021730000

5331-01-455-6280 (SHA 70 EPDM 160X3SHA70EPDM)

NIIN: 01-455-6280
In stock
NSN: 5331-01-455-6280
FSC Code: 5331
MPN: SHA70EPDM160X3SHA70EPDM

5331-01-512-3643 (160K0165-2)

NIIN: 01-512-3643
In stock
NSN: 5331-01-512-3643
FSC Code: 5331
MPN: 160K01652

5331-01-225-0797 (46203-1)

NIIN: 01-225-0797
In stock
NSN: 5331-01-225-0797
FSC Code: 5331
MPN: 462031

5331-01-222-3999 (46203-1)

NIIN: 01-222-3999
In stock
NSN: 5331-01-222-3999
FSC Code: 5331
MPN: 462031

5331-01-222-3998 (46203-1)

NIIN: 01-222-3998
In stock
NSN: 5331-01-222-3998
FSC Code: 5331
MPN: 462031

5331-01-225-0798 (46203-1)

NIIN: 01-225-0798
In stock
NSN: 5331-01-225-0798
FSC Code: 5331
MPN: 462031

5331-01-381-0823 (160A-1200)

NIIN: 01-381-0823
In stock
NSN: 5331-01-381-0823
FSC Code: 5331
MPN: 160A1200