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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.

5331-01-454-4774 (RM-0061-16)

NIIN: 01-454-4774
In stock
NSN: 5331-01-454-4774
FSC Code: 5331
MPN: RM006116

5331-01-424-7837 (RK21365)

NIIN: 01-424-7837
In stock
NSN: 5331-01-424-7837
FSC Code: 5331
MPN: RK21365

5331-01-424-7839 (RK22191)

NIIN: 01-424-7839
In stock
NSN: 5331-01-424-7839
FSC Code: 5331
MPN: RK22191

5331-01-358-8206 (RGT032343)

NIIN: 01-358-8206
In stock
NSN: 5331-01-358-8206
FSC Code: 5331
MPN: RGT032343

5331-01-358-5433 (RGTC326001)

NIIN: 01-358-5433
In stock
NSN: 5331-01-358-5433
FSC Code: 5331
MPN: RGTC326001

5331-01-440-8201 (RF110)

NIIN: 01-440-8201
In stock
NSN: 5331-01-440-8201
FSC Code: 5331
MPN: RF110

5331-01-481-8288 (RE64290)

NIIN: 01-481-8288
In stock
NSN: 5331-01-481-8288
FSC Code: 5331
MPN: RE64290

5331-01-549-9639 (RE504827)

NIIN: 01-549-9639
In stock
NSN: 5331-01-549-9639
FSC Code: 5331
MPN: RE504827

5331-01-552-9816 (RE500001)

NIIN: 01-552-9816
In stock
NSN: 5331-01-552-9816
FSC Code: 5331
MPN: RE500001

5331-01-474-7820 (RE16142)

NIIN: 01-474-7820
In stock
NSN: 5331-01-474-7820
FSC Code: 5331
MPN: RE16142

5331-01-559-4353 (RD-5-11944-0)

NIIN: 01-559-4353
In stock
NSN: 5331-01-559-4353
FSC Code: 5331
MPN: RD5119440

5331-01-520-7242 (RD-5-4057-0)

NIIN: 01-520-7242
In stock
NSN: 5331-01-520-7242
FSC Code: 5331
MPN: RD540570

5331-01-560-0886 (RD-5-11017)

NIIN: 01-560-0886
In stock
NSN: 5331-01-560-0886
FSC Code: 5331
MPN: RD511017

5331-01-532-1471 (RD-5-4017-011)

NIIN: 01-532-1471
In stock
NSN: 5331-01-532-1471
FSC Code: 5331
MPN: RD54017011

5331-01-524-7872 (RD-5-11017-0P)

NIIN: 01-524-7872
In stock
NSN: 5331-01-524-7872
FSC Code: 5331
MPN: RD5110170P

5331-01-524-9812 (RD-5-11016-0M)

NIIN: 01-524-9812
In stock
NSN: 5331-01-524-9812
FSC Code: 5331
MPN: RD5110160M

5331-01-559-2154 (RD-5-11015)

NIIN: 01-559-2154
In stock
NSN: 5331-01-559-2154
FSC Code: 5331
MPN: RD511015

5331-01-533-0281 (RD-5-11017-0)

NIIN: 01-533-0281
In stock
NSN: 5331-01-533-0281
FSC Code: 5331
MPN: RD5110170

5331-01-557-1933 (RD-5-11015-0)

NIIN: 01-557-1933
In stock
NSN: 5331-01-557-1933
FSC Code: 5331
MPN: RD5110150

5331-01-533-0282 (RD-5-11016-0)

NIIN: 01-533-0282
In stock
NSN: 5331-01-533-0282
FSC Code: 5331
MPN: RD5110160

5331-01-553-4094 (RD-5-10942-0M)

NIIN: 01-553-4094
In stock
NSN: 5331-01-553-4094
FSC Code: 5331
MPN: RD5109420M

5331-01-412-8074 (YB-3202-17)

NIIN: 01-412-8074
In stock
NSN: 5331-01-412-8074
FSC Code: 5331
MPN: YB320217

5331-01-559-5371 (RB1079)

NIIN: 01-559-5371
In stock
NSN: 5331-01-559-5371
FSC Code: 5331
MPN: RB1079

5331-01-559-5369 (RB1078)

NIIN: 01-559-5369
In stock
NSN: 5331-01-559-5369
FSC Code: 5331
MPN: RB1078

5331-01-457-4734 (RA10025-98)

NIIN: 01-457-4734
In stock
NSN: 5331-01-457-4734
FSC Code: 5331
MPN: RA1002598

5331-01-474-7644 (R99052)

NIIN: 01-474-7644
In stock
NSN: 5331-01-474-7644
FSC Code: 5331
MPN: R99052

5331-01-474-7647 (R99693)

NIIN: 01-474-7647
In stock
NSN: 5331-01-474-7647
FSC Code: 5331
MPN: R99693

5331-01-531-2502 (R97877)

NIIN: 01-531-2502
In stock
NSN: 5331-01-531-2502
FSC Code: 5331
MPN: R97877

5331-01-571-8494 (R93633)

NIIN: 01-571-8494
In stock
NSN: 5331-01-571-8494
FSC Code: 5331
MPN: R93633

5331-01-572-5059 (R978800493)

NIIN: 01-572-5059
In stock
NSN: 5331-01-572-5059
FSC Code: 5331
MPN: R978800493

5331-01-567-6135 (R99038)

NIIN: 01-567-6135
In stock
NSN: 5331-01-567-6135
FSC Code: 5331
MPN: R99038

5331-01-572-9226 (R978884545)

NIIN: 01-572-9226
In stock
NSN: 5331-01-572-9226
FSC Code: 5331
MPN: R978884545

5331-01-474-7824 (R99702)

NIIN: 01-474-7824
In stock
NSN: 5331-01-474-7824
FSC Code: 5331
MPN: R99702

5331-01-516-9380 (R978713149)

NIIN: 01-516-9380
In stock
NSN: 5331-01-516-9380
FSC Code: 5331
MPN: R978713149

5331-01-343-1052 (R94418)

NIIN: 01-343-1052
In stock
NSN: 5331-01-343-1052
FSC Code: 5331
MPN: R94418

5331-01-524-0136 (R910904274)

NIIN: 01-524-0136
In stock
NSN: 5331-01-524-0136
FSC Code: 5331
MPN: R910904274

5331-01-524-0134 (R910904264)

NIIN: 01-524-0134
In stock
NSN: 5331-01-524-0134
FSC Code: 5331
MPN: R910904264

5331-01-563-7775 (R910922449-22)

NIIN: 01-563-7775
In stock
NSN: 5331-01-563-7775
FSC Code: 5331
MPN: R91092244922

5331-01-524-0140 (R910904936)

NIIN: 01-524-0140
In stock
NSN: 5331-01-524-0140
FSC Code: 5331
MPN: R910904936

5331-01-524-0141 (R910919314)

NIIN: 01-524-0141
In stock
NSN: 5331-01-524-0141
FSC Code: 5331
MPN: R910919314

5331-01-563-8118 (R910907013-23)

NIIN: 01-563-8118
In stock
NSN: 5331-01-563-8118
FSC Code: 5331
MPN: R91090701323

5331-01-563-8130 (R910922449-23)

NIIN: 01-563-8130
In stock
NSN: 5331-01-563-8130
FSC Code: 5331
MPN: R91092244923

5331-01-563-7200 (R910907010-22)

NIIN: 01-563-7200
In stock
NSN: 5331-01-563-7200
FSC Code: 5331
MPN: R91090701022

5331-01-524-0133 (R910186961)

NIIN: 01-524-0133
In stock
NSN: 5331-01-524-0133
FSC Code: 5331
MPN: R910186961

5331-01-563-7776 (R910922449-24)

NIIN: 01-563-7776
In stock
NSN: 5331-01-563-7776
FSC Code: 5331
MPN: R91092244924

5331-01-572-2508 (R910515078)

NIIN: 01-572-2508
In stock
NSN: 5331-01-572-2508
FSC Code: 5331
MPN: R910515078

5331-01-563-8123 (R910920179-2)

NIIN: 01-563-8123
In stock
NSN: 5331-01-563-8123
FSC Code: 5331
MPN: R9109201792

5331-99-741-0807 (R909086333)

NIIN: 99-741-0807
In stock
NSN: 5331-99-741-0807
FSC Code: 5331
MPN: R909086333