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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.

5331-01-347-9529 (D)

NIIN: 01-347-9529
In stock
NSN: 5331-01-347-9529
FSC Code: 5331
MPN: D

5331-01-103-5690 (SM477)

NIIN: 01-103-5690
In stock
NSN: 5331-01-103-5690
FSC Code: 5331
MPN: SM477

5331-01-419-6919 (CXJA-XDN)

NIIN: 01-419-6919
In stock
NSN: 5331-01-419-6919
FSC Code: 5331
MPN: CXJAXDN

5331-01-326-7444 (SM205900)

NIIN: 01-326-7444
In stock
NSN: 5331-01-326-7444
FSC Code: 5331
MPN: SM205900

5331-01-212-7865 (SM0078)

NIIN: 01-212-7865
In stock
NSN: 5331-01-212-7865
FSC Code: 5331
MPN: SM0078

5331-00-801-8990 (SL767-93)

NIIN: 00-801-8990
In stock
NSN: 5331-00-801-8990
FSC Code: 5331
MPN: SL76793

5331-00-802-1062 (SL767-81)

NIIN: 00-802-1062
In stock
NSN: 5331-00-802-1062
FSC Code: 5331
MPN: SL76781

5331-00-801-4693 (SL767-80)

NIIN: 00-801-4693
In stock
NSN: 5331-00-801-4693
FSC Code: 5331
MPN: SL76780

5331-00-802-1262 (SL765-34)

NIIN: 00-802-1262
In stock
NSN: 5331-00-802-1262
FSC Code: 5331
MPN: SL76534

5331-00-801-8979 (SL767-87)

NIIN: 00-801-8979
In stock
NSN: 5331-00-801-8979
FSC Code: 5331
MPN: SL76787

5331-00-802-1056 (SL767-74)

NIIN: 00-802-1056
In stock
NSN: 5331-00-802-1056
FSC Code: 5331
MPN: SL76774

5331-00-802-1064 (SL767-150)

NIIN: 00-802-1064
In stock
NSN: 5331-00-802-1064
FSC Code: 5331
MPN: SL767150

5331-00-802-1052 (SL767-53)

NIIN: 00-802-1052
In stock
NSN: 5331-00-802-1052
FSC Code: 5331
MPN: SL76753

5331-00-801-9483 (SL767-11)

NIIN: 00-801-9483
In stock
NSN: 5331-00-801-9483
FSC Code: 5331
MPN: SL76711

5331-00-801-7361 (SL703-42)

NIIN: 00-801-7361
In stock
NSN: 5331-00-801-7361
FSC Code: 5331
MPN: SL70342

5331-00-801-6178 (SL703-78)

NIIN: 00-801-6178
In stock
NSN: 5331-00-801-6178
FSC Code: 5331
MPN: SL70378

5331-00-018-5426 (SL545)

NIIN: 00-018-5426
In stock
NSN: 5331-00-018-5426
FSC Code: 5331
MPN: SL545

5331-00-802-1897 (SL5450R12)

NIIN: 00-802-1897
In stock
NSN: 5331-00-802-1897
FSC Code: 5331
MPN: SL5450R12

5331-00-018-5427 (SL5450R17)

NIIN: 00-018-5427
In stock
NSN: 5331-00-018-5427
FSC Code: 5331
MPN: SL5450R17

5331-01-453-0111 (D-WK-492-A6/PC4-5)

NIIN: 01-453-0111
In stock
NSN: 5331-01-453-0111
FSC Code: 5331
MPN: DWK492A6PC45

5331-00-805-2956 (SL544-8)

NIIN: 00-805-2956
In stock
NSN: 5331-00-805-2956
FSC Code: 5331
MPN: SL5448

5331-00-801-6141 (SL5450R14)

NIIN: 00-801-6141
In stock
NSN: 5331-00-801-6141
FSC Code: 5331
MPN: SL5450R14

5331-00-018-5429 (SL544-9)

NIIN: 00-018-5429
In stock
NSN: 5331-00-018-5429
FSC Code: 5331
MPN: SL5449

5331-00-801-7340 (SL407-303)

NIIN: 00-801-7340
In stock
NSN: 5331-00-801-7340
FSC Code: 5331
MPN: SL407303

5331-01-470-6846 (CW-686ATT-23-600)

NIIN: 01-470-6846
In stock
NSN: 5331-01-470-6846
FSC Code: 5331
MPN: CW686ATT23600

5331-01-470-4536 (HX-2300B-23-607)

NIIN: 01-470-4536
In stock
NSN: 5331-01-470-4536
FSC Code: 5331
MPN: HX2300B23607

5331-01-470-4538 (HX-2300B-23-608)

NIIN: 01-470-4538
In stock
NSN: 5331-01-470-4538
FSC Code: 5331
MPN: HX2300B23608

5331-01-362-6163 (CW-686ATE)

NIIN: 01-362-6163
In stock
NSN: 5331-01-362-6163
FSC Code: 5331
MPN: CW686ATE

5331-01-470-6850 (CW-686ATV-23-602)

NIIN: 01-470-6850
In stock
NSN: 5331-01-470-6850
FSC Code: 5331
MPN: CW686ATV23602

5331-01-362-3400 (CW-686ASV)

NIIN: 01-362-3400
In stock
NSN: 5331-01-362-3400
FSC Code: 5331
MPN: CW686ASV

5331-01-466-2074 (HX-2300A-23-616)

NIIN: 01-466-2074
In stock
NSN: 5331-01-466-2074
FSC Code: 5331
MPN: HX2300A23616

5331-01-362-3402 (CW-686ASZ)

NIIN: 01-362-3402
In stock
NSN: 5331-01-362-3402
FSC Code: 5331
MPN: CW686ASZ

5331-01-466-2071 (HX-2300A-23-615)

NIIN: 01-466-2071
In stock
NSN: 5331-01-466-2071
FSC Code: 5331
MPN: HX2300A23615

5331-01-362-3401 (CW-686ATD)

NIIN: 01-362-3401
In stock
NSN: 5331-01-362-3401
FSC Code: 5331
MPN: CW686ATD

5331-01-353-2069 (CW-2300CW)

NIIN: 01-353-2069
In stock
NSN: 5331-01-353-2069
FSC Code: 5331
MPN: CW2300CW

5331-01-473-8271 (HX-2300A-23-617)

NIIN: 01-473-8271
In stock
NSN: 5331-01-473-8271
FSC Code: 5331
MPN: HX2300A23617

5331-01-572-1850 (CW-2300DHPART23-624)

NIIN: 01-572-1850
In stock
NSN: 5331-01-572-1850
FSC Code: 5331
MPN: CW2300DHPART23624

5331-01-481-3787 (CW-2300DFITEM23-624)

NIIN: 01-481-3787
In stock
NSN: 5331-01-481-3787
FSC Code: 5331
MPN: CW2300DFITEM23624

5331-01-481-3635 (CW-2300DFITEM23-622)

NIIN: 01-481-3635
In stock
NSN: 5331-01-481-3635
FSC Code: 5331
MPN: CW2300DFITEM23622

5331-01-572-1847 (CW-2300DHPART23-005)

NIIN: 01-572-1847
In stock
NSN: 5331-01-572-1847
FSC Code: 5331
MPN: CW2300DHPART23005

5331-01-481-3948 (CW-2300DFITEM23-621)

NIIN: 01-481-3948
In stock
NSN: 5331-01-481-3948
FSC Code: 5331
MPN: CW2300DFITEM23621

5331-01-572-1849 (CW-2300DHPART23-006)

NIIN: 01-572-1849
In stock
NSN: 5331-01-572-1849
FSC Code: 5331
MPN: CW2300DHPART23006

5331-01-572-1848 (CW-2300DHPART23-004)

NIIN: 01-572-1848
In stock
NSN: 5331-01-572-1848
FSC Code: 5331
MPN: CW2300DHPART23004

5331-01-362-4440 (CW-2300DCITEM23-650)

NIIN: 01-362-4440
In stock
NSN: 5331-01-362-4440
FSC Code: 5331
MPN: CW2300DCITEM23650

5331-01-481-3944 (CW-2300DFITEM23-619)

NIIN: 01-481-3944
In stock
NSN: 5331-01-481-3944
FSC Code: 5331
MPN: CW2300DFITEM23619

5331-01-481-3950 (CW-2300DFITEM23-620)

NIIN: 01-481-3950
In stock
NSN: 5331-01-481-3950
FSC Code: 5331
MPN: CW2300DFITEM23620

5331-01-488-9305 (CW-2300DFPN23-623)

NIIN: 01-488-9305
In stock
NSN: 5331-01-488-9305
FSC Code: 5331
MPN: CW2300DFPN23623

5331-01-572-1851 (CW-2300DHPART23-673)

NIIN: 01-572-1851
In stock
NSN: 5331-01-572-1851
FSC Code: 5331
MPN: CW2300DHPART23673