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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.

5331-01-364-4934 (353006002A)

NIIN: 01-364-4934
In stock
NSN: 5331-01-364-4934
FSC Code: 5331
MPN: 353006002A

5331-01-364-4925 (353001025A)

NIIN: 01-364-4925
In stock
NSN: 5331-01-364-4925
FSC Code: 5331
MPN: 353001025A

5331-01-364-4935 (353005002A)

NIIN: 01-364-4935
In stock
NSN: 5331-01-364-4935
FSC Code: 5331
MPN: 353005002A

5331-01-348-0439 (35-2X5-7)

NIIN: 01-348-0439
In stock
NSN: 5331-01-348-0439
FSC Code: 5331
MPN: 352X57

5331-00-847-5867 (75643-65X3PC9)

NIIN: 00-847-5867
In stock
NSN: 5331-00-847-5867
FSC Code: 5331
MPN: 7564365X3PC9

5331-00-891-9001 (755D210P145)

NIIN: 00-891-9001
In stock
NSN: 5331-00-891-9001
FSC Code: 5331
MPN: 755D210P145

5331-00-623-4975 (755D210P006)

NIIN: 00-623-4975
In stock
NSN: 5331-00-623-4975
FSC Code: 5331
MPN: 755D210P006

5331-00-764-9941 (755D210P903)

NIIN: 00-764-9941
In stock
NSN: 5331-00-764-9941
FSC Code: 5331
MPN: 755D210P903

5331-00-113-5217 (755D210-241)

NIIN: 00-113-5217
In stock
NSN: 5331-00-113-5217
FSC Code: 5331
MPN: 755D210241

5331-01-567-0407 (3525127C1)

NIIN: 01-567-0407
In stock
NSN: 5331-01-567-0407
FSC Code: 5331
MPN: 3525127C1

5331-01-069-1562 (755002A7760-1)

NIIN: 01-069-1562
In stock
NSN: 5331-01-069-1562
FSC Code: 5331
MPN: 755002A77601

5331-00-725-6639 (754774PC2)

NIIN: 00-725-6639
In stock
NSN: 5331-00-725-6639
FSC Code: 5331
MPN: 754774PC2

5331-00-490-4593 (754-4-37002-115)

NIIN: 00-490-4593
In stock
NSN: 5331-00-490-4593
FSC Code: 5331
MPN: 754437002115

5331-00-816-0015 (754-4-37002-112)

NIIN: 00-816-0015
In stock
NSN: 5331-00-816-0015
FSC Code: 5331
MPN: 754437002112

5331-01-061-0216 (754-4-37002-008)

NIIN: 01-061-0216
In stock
NSN: 5331-01-061-0216
FSC Code: 5331
MPN: 754437002008

5331-00-430-1734 (754-4-25183-111)

NIIN: 00-430-1734
In stock
NSN: 5331-00-430-1734
FSC Code: 5331
MPN: 754425183111

5331-00-430-1759 (754-4-25183-067)

NIIN: 00-430-1759
In stock
NSN: 5331-00-430-1759
FSC Code: 5331
MPN: 754425183067

5331-00-467-8306 (754-4-25183-069)

NIIN: 00-467-8306
In stock
NSN: 5331-00-467-8306
FSC Code: 5331
MPN: 754425183069

5331-00-420-8229 (754-4-24861-343)

NIIN: 00-420-8229
In stock
NSN: 5331-00-420-8229
FSC Code: 5331
MPN: 754424861343

5331-00-467-8275 (754-4-24782)

NIIN: 00-467-8275
In stock
NSN: 5331-00-467-8275
FSC Code: 5331
MPN: 754424782

5331-00-467-8155 (754-4-02408-007)

NIIN: 00-467-8155
In stock
NSN: 5331-00-467-8155
FSC Code: 5331
MPN: 754402408007

5331-01-305-6005 (7543876-001)

NIIN: 01-305-6005
In stock
NSN: 5331-01-305-6005
FSC Code: 5331
MPN: 7543876001

5331-01-305-6004 (7543864-001)

NIIN: 01-305-6004
In stock
NSN: 5331-01-305-6004
FSC Code: 5331
MPN: 7543864001

5331-01-305-6006 (7543877-001)

NIIN: 01-305-6006
In stock
NSN: 5331-01-305-6006
FSC Code: 5331
MPN: 7543877001

5331-00-467-8247 (754-2-24285)

NIIN: 00-467-8247
In stock
NSN: 5331-00-467-8247
FSC Code: 5331
MPN: 754224285

5331-00-479-9249 (7542-1)

NIIN: 00-479-9249
In stock
NSN: 5331-00-479-9249
FSC Code: 5331
MPN: 75421

5331-01-308-8106 (7536-139265)

NIIN: 01-308-8106
In stock
NSN: 5331-01-308-8106
FSC Code: 5331
MPN: 7536139265

5331-01-057-7502 (7534375-125S70)

NIIN: 01-057-7502
In stock
NSN: 5331-01-057-7502
FSC Code: 5331
MPN: 7534375125S70

5331-01-126-0839 (7-5-207-1)

NIIN: 01-126-0839
In stock
NSN: 5331-01-126-0839
FSC Code: 5331
MPN: 752071

5331-00-139-7188 (7519-36)

NIIN: 00-139-7188
In stock
NSN: 5331-00-139-7188
FSC Code: 5331
MPN: 751936

5331-01-320-9572 (751198-25)

NIIN: 01-320-9572
In stock
NSN: 5331-01-320-9572
FSC Code: 5331
MPN: 75119825

5331-01-320-9571 (751198-24)

NIIN: 01-320-9571
In stock
NSN: 5331-01-320-9571
FSC Code: 5331
MPN: 75119824

5331-01-320-9573 (751198-5)

NIIN: 01-320-9573
In stock
NSN: 5331-01-320-9573
FSC Code: 5331
MPN: 7511985

5331-01-093-9662 (751198-1)

NIIN: 01-093-9662
In stock
NSN: 5331-01-093-9662
FSC Code: 5331
MPN: 7511981

5331-01-320-9569 (751198-21)

NIIN: 01-320-9569
In stock
NSN: 5331-01-320-9569
FSC Code: 5331
MPN: 75119821

5331-01-094-0162 (751198-2)

NIIN: 01-094-0162
In stock
NSN: 5331-01-094-0162
FSC Code: 5331
MPN: 7511982

5331-01-320-9570 (751198-22)

NIIN: 01-320-9570
In stock
NSN: 5331-01-320-9570
FSC Code: 5331
MPN: 75119822

5331-01-569-8591 (350HN1348)

NIIN: 01-569-8591
In stock
NSN: 5331-01-569-8591
FSC Code: 5331
MPN: 350HN1348

5331-01-315-9546 (750X035-70BN)

NIIN: 01-315-9546
In stock
NSN: 5331-01-315-9546
FSC Code: 5331
MPN: 750X03570BN

5331-01-313-5692 (750758-29)

NIIN: 01-313-5692
In stock
NSN: 5331-01-313-5692
FSC Code: 5331
MPN: 75075829

5331-00-452-0554 (7507-215)

NIIN: 00-452-0554
In stock
NSN: 5331-00-452-0554
FSC Code: 5331
MPN: 7507215

5331-01-195-1508 (75064-2.5D449317)

NIIN: 01-195-1508
In stock
NSN: 5331-01-195-1508
FSC Code: 5331
MPN: 7506425D449317

5331-01-208-9797 (7504202AA)

NIIN: 01-208-9797
In stock
NSN: 5331-01-208-9797
FSC Code: 5331
MPN: 7504202AA

5331-00-467-8956 (7-50030-114)

NIIN: 00-467-8956
In stock
NSN: 5331-00-467-8956
FSC Code: 5331
MPN: 750030114

5331-01-126-4550 (7-5.224.1)

NIIN: 01-126-4550
In stock
NSN: 5331-01-126-4550
FSC Code: 5331
MPN: 752241

5331-01-361-8371 (34X3.5)

NIIN: 01-361-8371
In stock
NSN: 5331-01-361-8371
FSC Code: 5331
MPN: 34X35

5331-01-363-1571 (34R)

NIIN: 01-363-1571
In stock
NSN: 5331-01-363-1571
FSC Code: 5331
MPN: 34R

5331-99-801-6624 (H896-381351)

NIIN: 99-801-6624
In stock
NSN: 5331-99-801-6624
FSC Code: 5331
MPN: H896381351