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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.

5331-01-274-7406 (C095634-1)

NIIN: 01-274-7406
In stock
NSN: 5331-01-274-7406
FSC Code: 5331
MPN: C0956341

5331-01-173-0876 (C-084208)

NIIN: 01-173-0876
In stock
NSN: 5331-01-173-0876
FSC Code: 5331
MPN: C084208

5331-01-079-9956 (C-084400)

NIIN: 01-079-9956
In stock
NSN: 5331-01-079-9956
FSC Code: 5331
MPN: C084400

5331-01-285-4808 (C07-01412)

NIIN: 01-285-4808
In stock
NSN: 5331-01-285-4808
FSC Code: 5331
MPN: C0701412

5331-01-294-8445 (C0707-502-034)

NIIN: 01-294-8445
In stock
NSN: 5331-01-294-8445
FSC Code: 5331
MPN: C0707502034

5331-01-106-6457 (C-069083)

NIIN: 01-106-6457
In stock
NSN: 5331-01-106-6457
FSC Code: 5331
MPN: C069083

5331-01-285-4809 (C07-01417)

NIIN: 01-285-4809
In stock
NSN: 5331-01-285-4809
FSC Code: 5331
MPN: C0701417

5331-01-505-1835 (625-00655)

NIIN: 01-505-1835
In stock
NSN: 5331-01-505-1835
FSC Code: 5331
MPN: 62500655

5331-01-323-4736 (C-064-800-027)

NIIN: 01-323-4736
In stock
NSN: 5331-01-323-4736
FSC Code: 5331
MPN: C064800027

5331-01-505-1836 (625-00656)

NIIN: 01-505-1836
In stock
NSN: 5331-01-505-1836
FSC Code: 5331
MPN: 62500656

5331-01-323-4737 (C-064-800-028)

NIIN: 01-323-4737
In stock
NSN: 5331-01-323-4737
FSC Code: 5331
MPN: C064800028

5331-01-323-4735 (C-064-800-027)

NIIN: 01-323-4735
In stock
NSN: 5331-01-323-4735
FSC Code: 5331
MPN: C064800027

5331-01-453-4963 (625.1301.156)

NIIN: 01-453-4963
In stock
NSN: 5331-01-453-4963
FSC Code: 5331
MPN: 6251301156

5331-01-433-0512 (6246024-1)

NIIN: 01-433-0512
In stock
NSN: 5331-01-433-0512
FSC Code: 5331
MPN: 62460241

5331-01-432-0544 (6246024-2)

NIIN: 01-432-0544
In stock
NSN: 5331-01-432-0544
FSC Code: 5331
MPN: 62460242

5331-01-433-0974 (6245768-6)

NIIN: 01-433-0974
In stock
NSN: 5331-01-433-0974
FSC Code: 5331
MPN: 62457686

5331-01-433-0975 (6245768-7)

NIIN: 01-433-0975
In stock
NSN: 5331-01-433-0975
FSC Code: 5331
MPN: 62457687

5331-01-433-0976 (6245768-8)

NIIN: 01-433-0976
In stock
NSN: 5331-01-433-0976
FSC Code: 5331
MPN: 62457688

5331-01-439-9023 (6245768-2)

NIIN: 01-439-9023
In stock
NSN: 5331-01-439-9023
FSC Code: 5331
MPN: 62457682

5331-01-433-0955 (6245768-5)

NIIN: 01-433-0955
In stock
NSN: 5331-01-433-0955
FSC Code: 5331
MPN: 62457685

5331-01-433-0973 (6245768-4)

NIIN: 01-433-0973
In stock
NSN: 5331-01-433-0973
FSC Code: 5331
MPN: 62457684

5331-01-439-8980 (6245768-3)

NIIN: 01-439-8980
In stock
NSN: 5331-01-439-8980
FSC Code: 5331
MPN: 62457683

5331-01-369-2633 (R49388-908G)

NIIN: 01-369-2633
In stock
NSN: 5331-01-369-2633
FSC Code: 5331
MPN: R49388908G

5331-00-476-7349 (C004-110)

NIIN: 00-476-7349
In stock
NSN: 5331-00-476-7349
FSC Code: 5331
MPN: C004110

5331-01-426-0386 (62356.001-002)

NIIN: 01-426-0386
In stock
NSN: 5331-01-426-0386
FSC Code: 5331
MPN: 62356001002

5331-01-473-5199 (62350-XX114-3634)

NIIN: 01-473-5199
In stock
NSN: 5331-01-473-5199
FSC Code: 5331
MPN: 62350XX1143634

5331-01-426-0385 (62356.001-002)

NIIN: 01-426-0385
In stock
NSN: 5331-01-426-0385
FSC Code: 5331
MPN: 62356001002

5331-01-529-4222 (623018B3)

NIIN: 01-529-4222
In stock
NSN: 5331-01-529-4222
FSC Code: 5331
MPN: 623018B3

5331-01-022-5490 (BX325176)

NIIN: 01-022-5490
In stock
NSN: 5331-01-022-5490
FSC Code: 5331
MPN: BX325176

5331-01-125-1094 (BVAM502-3)

NIIN: 01-125-1094
In stock
NSN: 5331-01-125-1094
FSC Code: 5331
MPN: BVAM5023

5331-01-125-3521 (BVAP153-1-32)

NIIN: 01-125-3521
In stock
NSN: 5331-01-125-3521
FSC Code: 5331
MPN: BVAP153132

5331-01-229-7839 (BVA-M502-5-.75-)

NIIN: 01-229-7839
In stock
NSN: 5331-01-229-7839
FSC Code: 5331
MPN: BVAM502575

5331-01-275-7621 (BV-1179-55)

NIIN: 01-275-7621
In stock
NSN: 5331-01-275-7621
FSC Code: 5331
MPN: BV117955

5331-00-576-9514 (BUWEPSSP17861)

NIIN: 00-576-9514
In stock
NSN: 5331-00-576-9514
FSC Code: 5331
MPN: BUWEPSSP17861

5331-01-523-7776 (622061-00)

NIIN: 01-523-7776
In stock
NSN: 5331-01-523-7776
FSC Code: 5331
MPN: 62206100

5331-01-285-9339 (BS210)

NIIN: 01-285-9339
In stock
NSN: 5331-01-285-9339
FSC Code: 5331
MPN: BS210

5331-01-523-7775 (622060-00)

NIIN: 01-523-7775
In stock
NSN: 5331-01-523-7775
FSC Code: 5331
MPN: 62206000

5331-01-523-7774 (622034-00)

NIIN: 01-523-7774
In stock
NSN: 5331-01-523-7774
FSC Code: 5331
MPN: 62203400

5331-00-425-1321 (BS1806-132)

NIIN: 00-425-1321
In stock
NSN: 5331-00-425-1321
FSC Code: 5331
MPN: BS1806132

5331-00-451-1285 (BS1806-126)

NIIN: 00-451-1285
In stock
NSN: 5331-00-451-1285
FSC Code: 5331
MPN: BS1806126

5331-01-066-3484 (BS1806-141)

NIIN: 01-066-3484
In stock
NSN: 5331-01-066-3484
FSC Code: 5331
MPN: BS1806141

5331-01-178-1771 (BS1806-032)

NIIN: 01-178-1771
In stock
NSN: 5331-01-178-1771
FSC Code: 5331
MPN: BS1806032

5331-01-178-8326 (BS1806-017)

NIIN: 01-178-8326
In stock
NSN: 5331-01-178-8326
FSC Code: 5331
MPN: BS1806017

5331-00-308-0860 (BS1806-024)

NIIN: 00-308-0860
In stock
NSN: 5331-00-308-0860
FSC Code: 5331
MPN: BS1806024

5331-01-523-7773 (622018-00)

NIIN: 01-523-7773
In stock
NSN: 5331-01-523-7773
FSC Code: 5331
MPN: 62201800

5331-01-252-7154 (BS)

NIIN: 01-252-7154
In stock
NSN: 5331-01-252-7154
FSC Code: 5331
MPN: BS

5331-01-205-4256 (BS)

NIIN: 01-205-4256
In stock
NSN: 5331-01-205-4256
FSC Code: 5331
MPN: BS

5331-01-205-4255 (BS)

NIIN: 01-205-4255
In stock
NSN: 5331-01-205-4255
FSC Code: 5331
MPN: BS