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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.

5331-01-603-5081 (033045)

NIIN: 01-603-5081
In stock
NSN: 5331-01-603-5081
FSC Code: 5331
MPN: 033045

5331-01-603-4707 (110-4743)

NIIN: 01-603-4707
In stock
NSN: 5331-01-603-4707
FSC Code: 5331
MPN: 1104743

5331-01-604-2837 (14529-ZY3-000)

NIIN: 01-604-2837
In stock
NSN: 5331-01-604-2837
FSC Code: 5331
MPN: 14529ZY3000

5331-01-604-2655 (91308-P8A-A01)

NIIN: 01-604-2655
In stock
NSN: 5331-01-604-2655
FSC Code: 5331
MPN: 91308P8AA01

5331-01-603-9847 (93210-33M49-00)

NIIN: 01-603-9847
In stock
NSN: 5331-01-603-9847
FSC Code: 5331
MPN: 9321033M4900

5331-01-603-9284 (605-058-001)

NIIN: 01-603-9284
In stock
NSN: 5331-01-603-9284
FSC Code: 5331
MPN: 605058001

5331-01-603-9168 (932-10093-50-00)

NIIN: 01-603-9168
In stock
NSN: 5331-01-603-9168
FSC Code: 5331
MPN: 932100935000

5331-01-603-8821 (5-256 V0894)

NIIN: 01-603-8821
In stock
NSN: 5331-01-603-8821
FSC Code: 5331
MPN: 5256V0894

5331-01-603-7350 (M22050-2-118)

NIIN: 01-603-7350
In stock
NSN: 5331-01-603-7350
FSC Code: 5331
MPN: M220502118

5331-01-604-4057 (NA151 2-217)

NIIN: 01-604-4057
In stock
NSN: 5331-01-604-4057
FSC Code: 5331
MPN: NA1512217

5331-01-604-2663 (560-006-0360)

NIIN: 01-604-2663
In stock
NSN: 5331-01-604-2663
FSC Code: 5331
MPN: 5600060360

5331-01-604-2167 (J1400P014)

NIIN: 01-604-2167
In stock
NSN: 5331-01-604-2167
FSC Code: 5331
MPN: J1400P014

5331-01-603-7195 (5235-107JKNF)

NIIN: 01-603-7195
In stock
NSN: 5331-01-603-7195
FSC Code: 5331
MPN: 5235107JKNF

5331-01-603-6703 (209-3339)

NIIN: 01-603-6703
In stock
NSN: 5331-01-603-6703
FSC Code: 5331
MPN: 2093339

5331-01-603-5455 (AS3581-042)

NIIN: 01-603-5455
In stock
NSN: 5331-01-603-5455
FSC Code: 5331
MPN: AS3581042

5331-01-604-1541 (010403 0016)

NIIN: 01-604-1541
In stock
NSN: 5331-01-604-1541
FSC Code: 5331
MPN: 0104030016

5331-01-603-9201 (69J-4389J-00-00)

NIIN: 01-603-9201
In stock
NSN: 5331-01-603-9201
FSC Code: 5331
MPN: 69J4389J0000

5331-01-603-8357 (634349951)

NIIN: 01-603-8357
In stock
NSN: 5331-01-603-8357
FSC Code: 5331
MPN: 634349951

5331-01-603-7317 (M22050-2-132)

NIIN: 01-603-7317
In stock
NSN: 5331-01-603-7317
FSC Code: 5331
MPN: M220502132

5331-01-603-6914 (9X3979)

NIIN: 01-603-6914
In stock
NSN: 5331-01-603-6914
FSC Code: 5331
MPN: 9X3979

5331-01-603-6063 (892079)

NIIN: 01-603-6063
In stock
NSN: 5331-01-603-6063
FSC Code: 5331
MPN: 892079

5331-01-603-3013 (121820-52260)

NIIN: 01-603-3013
In stock
NSN: 5331-01-603-3013
FSC Code: 5331
MPN: 12182052260

5331-01-603-1384 (047147)

NIIN: 01-603-1384
In stock
NSN: 5331-01-603-1384
FSC Code: 5331
MPN: 047147

5331-01-604-0667 (T10540350)

NIIN: 01-604-0667
In stock
NSN: 5331-01-604-0667
FSC Code: 5331
MPN: T10540350

5331-01-603-7890 (236613-0003 ITEM 63)

NIIN: 01-603-7890
In stock
NSN: 5331-01-603-7890
FSC Code: 5331
MPN: 2366130003ITEM63

5331-01-603-9736 (J1438P049)

NIIN: 01-603-9736
In stock
NSN: 5331-01-603-9736
FSC Code: 5331
MPN: J1438P049

5331-01-603-9113 (XM123091305 CP)

NIIN: 01-603-9113
In stock
NSN: 5331-01-603-9113
FSC Code: 5331
MPN: XM123091305CP

5331-01-603-4679 (4D09151-002)

NIIN: 01-603-4679
In stock
NSN: 5331-01-603-4679
FSC Code: 5331
MPN: 4D09151002

5331-01-603-8715 (215X1106)

NIIN: 01-603-8715
In stock
NSN: 5331-01-603-8715
FSC Code: 5331
MPN: 215X1106

5331-01-603-2394 (24341-001350)

NIIN: 01-603-2394
In stock
NSN: 5331-01-603-2394
FSC Code: 5331
MPN: 24341001350

5331-01-603-5046 (046616)

NIIN: 01-603-5046
In stock
NSN: 5331-01-603-5046
FSC Code: 5331
MPN: 046616

5331-01-603-1053 (046297)

NIIN: 01-603-1053
In stock
NSN: 5331-01-603-1053
FSC Code: 5331
MPN: 046297

5331-01-603-7754 (M22050-2-155)

NIIN: 01-603-7754
In stock
NSN: 5331-01-603-7754
FSC Code: 5331
MPN: M220502155

5331-01-603-6787 (5W-5108)

NIIN: 01-603-6787
In stock
NSN: 5331-01-603-6787
FSC Code: 5331
MPN: 5W5108

5331-01-603-5963 (892317001)

NIIN: 01-603-5963
In stock
NSN: 5331-01-603-5963
FSC Code: 5331
MPN: 892317001

5331-01-603-3026 (24311-000110)

NIIN: 01-603-3026
In stock
NSN: 5331-01-603-3026
FSC Code: 5331
MPN: 24311000110

5331-01-603-1208 (2621-927-10ASSYA2.00IN,ITEM23)

NIIN: 01-603-1208
In stock
NSN: 5331-01-603-1208
FSC Code: 5331
MPN: 262192710ASSYA200INITEM23

5331-01-603-1071 (803-7526200-XEXX-10)

NIIN: 01-603-1071
In stock
NSN: 5331-01-603-1071
FSC Code: 5331
MPN: 8037526200XEXX10

5331-01-602-8878 (CET-020)

NIIN: 01-602-8878
In stock
NSN: 5331-01-602-8878
FSC Code: 5331
MPN: CET020

5331-01-602-8701 (671-00011-0)

NIIN: 01-602-8701
In stock
NSN: 5331-01-602-8701
FSC Code: 5331
MPN: 671000110

5331-01-603-8976 (M22050-2-152)

NIIN: 01-603-8976
In stock
NSN: 5331-01-603-8976
FSC Code: 5331
MPN: M220502152

5331-01-603-8772 (6H1-43883-00-00)

NIIN: 01-603-8772
In stock
NSN: 5331-01-603-8772
FSC Code: 5331
MPN: 6H1438830000

5331-01-603-8356 (634303534)

NIIN: 01-603-8356
In stock
NSN: 5331-01-603-8356
FSC Code: 5331
MPN: 634303534

5331-01-603-8350 (634306300)

NIIN: 01-603-8350
In stock
NSN: 5331-01-603-8350
FSC Code: 5331
MPN: 634306300

5331-01-603-8358 (3217307024)

NIIN: 01-603-8358
In stock
NSN: 5331-01-603-8358
FSC Code: 5331
MPN: 3217307024

5331-01-603-7780 (M22050-2-139)

NIIN: 01-603-7780
In stock
NSN: 5331-01-603-7780
FSC Code: 5331
MPN: M220502139

5331-01-603-5789 (N0674-70 6-039)

NIIN: 01-603-5789
In stock
NSN: 5331-01-603-5789
FSC Code: 5331
MPN: N0674706039

5331-01-603-1184 (9262K174)

NIIN: 01-603-1184
In stock
NSN: 5331-01-603-1184
FSC Code: 5331
MPN: 9262K174