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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.

5331-01-095-3191 (8051-07)

NIIN: 01-095-3191
In stock
NSN: 5331-01-095-3191
FSC Code: 5331
MPN: 805107

5331-01-171-1320 (8-0-51-08-3)

NIIN: 01-171-1320
In stock
NSN: 5331-01-171-1320
FSC Code: 5331
MPN: 8051083

5331-00-892-4111 (805023-28A)

NIIN: 00-892-4111
In stock
NSN: 5331-00-892-4111
FSC Code: 5331
MPN: 80502328A

5331-00-892-4104 (805023-19)

NIIN: 00-892-4104
In stock
NSN: 5331-00-892-4104
FSC Code: 5331
MPN: 80502319

5331-00-853-5818 (805023-2)

NIIN: 00-853-5818
In stock
NSN: 5331-00-853-5818
FSC Code: 5331
MPN: 8050232

5331-00-853-5819 (805023-22)

NIIN: 00-853-5819
In stock
NSN: 5331-00-853-5819
FSC Code: 5331
MPN: 80502322

5331-00-853-6344 (805023-16)

NIIN: 00-853-6344
In stock
NSN: 5331-00-853-6344
FSC Code: 5331
MPN: 80502316

5331-00-884-2491 (805023-17)

NIIN: 00-884-2491
In stock
NSN: 5331-00-884-2491
FSC Code: 5331
MPN: 80502317

5331-01-324-2537 (804-R)

NIIN: 01-324-2537
In stock
NSN: 5331-01-324-2537
FSC Code: 5331
MPN: 804R

5331-01-353-3474 (40-1-711-01)

NIIN: 01-353-3474
In stock
NSN: 5331-01-353-3474
FSC Code: 5331
MPN: 40171101

5331-01-424-3857 (4016TS)

NIIN: 01-424-3857
In stock
NSN: 5331-01-424-3857
FSC Code: 5331
MPN: 4016TS

5331-01-250-6734 (803-F74465PC2)

NIIN: 01-250-6734
In stock
NSN: 5331-01-250-6734
FSC Code: 5331
MPN: 803F74465PC2

5331-01-424-3860 (4015TS)

NIIN: 01-424-3860
In stock
NSN: 5331-01-424-3860
FSC Code: 5331
MPN: 4015TS

5331-01-510-6944 (4015BN)

NIIN: 01-510-6944
In stock
NSN: 5331-01-510-6944
FSC Code: 5331
MPN: 4015BN

5331-01-414-0811 (401590ITEM9)

NIIN: 01-414-0811
In stock
NSN: 5331-01-414-0811
FSC Code: 5331
MPN: 401590ITEM9

5331-01-414-4999 (401590ITEM29)

NIIN: 01-414-4999
In stock
NSN: 5331-01-414-4999
FSC Code: 5331
MPN: 401590ITEM29

5331-01-414-0996 (401590ITEM21)

NIIN: 01-414-0996
In stock
NSN: 5331-01-414-0996
FSC Code: 5331
MPN: 401590ITEM21

5331-01-414-0997 (401590ITEM50)

NIIN: 01-414-0997
In stock
NSN: 5331-01-414-0997
FSC Code: 5331
MPN: 401590ITEM50

5331-01-414-0806 (401590ITEM27)

NIIN: 01-414-0806
In stock
NSN: 5331-01-414-0806
FSC Code: 5331
MPN: 401590ITEM27

5331-01-415-0643 (401590ITEM60)

NIIN: 01-415-0643
In stock
NSN: 5331-01-415-0643
FSC Code: 5331
MPN: 401590ITEM60

5331-01-414-0810 (401590ITEM64)

NIIN: 01-414-0810
In stock
NSN: 5331-01-414-0810
FSC Code: 5331
MPN: 401590ITEM64

5331-01-122-3910 (803-6915566-7)

NIIN: 01-122-3910
In stock
NSN: 5331-01-122-3910
FSC Code: 5331
MPN: 80369155667

5331-01-318-2281 (8036-366Y)

NIIN: 01-318-2281
In stock
NSN: 5331-01-318-2281
FSC Code: 5331
MPN: 8036366Y

5331-01-126-2644 (803-5001048)

NIIN: 01-126-2644
In stock
NSN: 5331-01-126-2644
FSC Code: 5331
MPN: 8035001048

5331-01-365-0213 (401-4597556-59)

NIIN: 01-365-0213
In stock
NSN: 5331-01-365-0213
FSC Code: 5331
MPN: 401459755659

5331-01-365-0214 (401-4597556-51)

NIIN: 01-365-0214
In stock
NSN: 5331-01-365-0214
FSC Code: 5331
MPN: 401459755651

5331-00-230-5214 (8034A245D)

NIIN: 00-230-5214
In stock
NSN: 5331-00-230-5214
FSC Code: 5331
MPN: 8034A245D

5331-01-058-0778 (803-4384536D-51)

NIIN: 01-058-0778
In stock
NSN: 5331-01-058-0778
FSC Code: 5331
MPN: 8034384536D51

5331-01-207-9379 (803-4384536-7XX-29)

NIIN: 01-207-9379
In stock
NSN: 5331-01-207-9379
FSC Code: 5331
MPN: 80343845367XX29

5331-01-268-3193 (803-4384536-71B-29)

NIIN: 01-268-3193
In stock
NSN: 5331-01-268-3193
FSC Code: 5331
MPN: 803438453671B29

5331-01-214-3769 (803-4384536-5XX1-49)

NIIN: 01-214-3769
In stock
NSN: 5331-01-214-3769
FSC Code: 5331
MPN: 80343845365XX149

5331-01-252-3112 (803-4384536-5XX2-29)

NIIN: 01-252-3112
In stock
NSN: 5331-01-252-3112
FSC Code: 5331
MPN: 80343845365XX229

5331-01-214-7919 (803-4384536-5XX1-48)

NIIN: 01-214-7919
In stock
NSN: 5331-01-214-7919
FSC Code: 5331
MPN: 80343845365XX148

5331-01-260-7721 (803-4384536-4XX2-29)

NIIN: 01-260-7721
In stock
NSN: 5331-01-260-7721
FSC Code: 5331
MPN: 80343845364XX229

5331-01-097-6626 (803-4384536-4XX-48)

NIIN: 01-097-6626
In stock
NSN: 5331-01-097-6626
FSC Code: 5331
MPN: 80343845364XX48

5331-01-274-0278 (803-4384536-45B-29)

NIIN: 01-274-0278
In stock
NSN: 5331-01-274-0278
FSC Code: 5331
MPN: 803438453645B29

5331-01-268-3191 (803-4384536-33B-29)

NIIN: 01-268-3191
In stock
NSN: 5331-01-268-3191
FSC Code: 5331
MPN: 803438453633B29

5331-01-268-3192 (803-4384536-33B-30)

NIIN: 01-268-3192
In stock
NSN: 5331-01-268-3192
FSC Code: 5331
MPN: 803438453633B30

5331-01-268-3189 (803-4384536-31B-29)

NIIN: 01-268-3189
In stock
NSN: 5331-01-268-3189
FSC Code: 5331
MPN: 803438453631B29

5331-01-268-3190 (803-4384536-318-30)

NIIN: 01-268-3190
In stock
NSN: 5331-01-268-3190
FSC Code: 5331
MPN: 803438453631830

5331-01-268-3188 (803-4384536-21B-29)

NIIN: 01-268-3188
In stock
NSN: 5331-01-268-3188
FSC Code: 5331
MPN: 803438453621B29

5331-01-268-3186 (803438453611B30)

NIIN: 01-268-3186
In stock
NSN: 5331-01-268-3186
FSC Code: 5331
MPN: 803438453611B30

5331-01-549-1503 (4-0-13R1)

NIIN: 01-549-1503
In stock
NSN: 5331-01-549-1503
FSC Code: 5331
MPN: 4013R1

5331-01-268-3187 (803-4384536-13B)

NIIN: 01-268-3187
In stock
NSN: 5331-01-268-3187
FSC Code: 5331
MPN: 803438453613B

5331-01-268-3185 (803-4384536-11B-29)

NIIN: 01-268-3185
In stock
NSN: 5331-01-268-3185
FSC Code: 5331
MPN: 803438453611B29

5331-00-515-4890 (80335-01)

NIIN: 00-515-4890
In stock
NSN: 5331-00-515-4890
FSC Code: 5331
MPN: 8033501

5331-01-076-4975 (8033-366Y)

NIIN: 01-076-4975
In stock
NSN: 5331-01-076-4975
FSC Code: 5331
MPN: 8033366Y

5331-01-029-3670 (803-2177934-4XX-20A)

NIIN: 01-029-3670
In stock
NSN: 5331-01-029-3670
FSC Code: 5331
MPN: 80321779344XX20A