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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.

5331-01-233-2846 (58-008-21)

NIIN: 01-233-2846
In stock
NSN: 5331-01-233-2846
FSC Code: 5331
MPN: 5800821

5331-00-531-3987 (58-009-27)

NIIN: 00-531-3987
In stock
NSN: 5331-00-531-3987
FSC Code: 5331
MPN: 5800927

5331-01-227-2200 (58-007-30)

NIIN: 01-227-2200
In stock
NSN: 5331-01-227-2200
FSC Code: 5331
MPN: 5800730

5331-01-113-5752 (58-008-53)

NIIN: 01-113-5752
In stock
NSN: 5331-01-113-5752
FSC Code: 5331
MPN: 5800853

5331-00-988-9251 (58-006-44)

NIIN: 00-988-9251
In stock
NSN: 5331-00-988-9251
FSC Code: 5331
MPN: 5800644

5331-01-176-7914 (58-007-15)

NIIN: 01-176-7914
In stock
NSN: 5331-01-176-7914
FSC Code: 5331
MPN: 5800715

5331-00-916-9280 (58-007-17)

NIIN: 00-916-9280
In stock
NSN: 5331-00-916-9280
FSC Code: 5331
MPN: 5800717

5331-01-308-0150 (57K1015)

NIIN: 01-308-0150
In stock
NSN: 5331-01-308-0150
FSC Code: 5331
MPN: 57K1015

5331-01-549-1558 (2-0-8R)

NIIN: 01-549-1558
In stock
NSN: 5331-01-549-1558
FSC Code: 5331
MPN: 208R

5331-01-412-1457 (2088P-00)

NIIN: 01-412-1457
In stock
NSN: 5331-01-412-1457
FSC Code: 5331
MPN: 2088P00

5331-01-412-1450 (2086P-00)

NIIN: 01-412-1450
In stock
NSN: 5331-01-412-1450
FSC Code: 5331
MPN: 2086P00

5331-01-421-9883 (2086-2062)

NIIN: 01-421-9883
In stock
NSN: 5331-01-421-9883
FSC Code: 5331
MPN: 20862062

5331-01-421-9884 (2086-2060)

NIIN: 01-421-9884
In stock
NSN: 5331-01-421-9884
FSC Code: 5331
MPN: 20862060

5331-01-240-8819 (579L822-G11)

NIIN: 01-240-8819
In stock
NSN: 5331-01-240-8819
FSC Code: 5331
MPN: 579L822G11

5331-01-240-1657 (579L822-G03)

NIIN: 01-240-1657
In stock
NSN: 5331-01-240-1657
FSC Code: 5331
MPN: 579L822G03

5331-01-437-8884 (2084P)

NIIN: 01-437-8884
In stock
NSN: 5331-01-437-8884
FSC Code: 5331
MPN: 2084P

5331-01-465-9377 (320951F93)

NIIN: 01-465-9377
In stock
NSN: 5331-01-465-9377
FSC Code: 5331
MPN: 320951F93

5331-00-478-2901 (5796-8441-5)

NIIN: 00-478-2901
In stock
NSN: 5331-00-478-2901
FSC Code: 5331
MPN: 579684415

5331-01-029-6298 (5796-PC)

NIIN: 01-029-6298
In stock
NSN: 5331-01-029-6298
FSC Code: 5331
MPN: 5796PC

5331-00-752-7911 (578-501-771410PC40)

NIIN: 00-752-7911
In stock
NSN: 5331-00-752-7911
FSC Code: 5331
MPN: 578501771410PC40

5331-01-472-5484 (208039-8)

NIIN: 01-472-5484
In stock
NSN: 5331-01-472-5484
FSC Code: 5331
MPN: 2080398

5331-01-472-5486 (208039-9)

NIIN: 01-472-5486
In stock
NSN: 5331-01-472-5486
FSC Code: 5331
MPN: 2080399

5331-00-551-4792 (578-3806-771414REVDPC38SH2)

NIIN: 00-551-4792
In stock
NSN: 5331-00-551-4792
FSC Code: 5331
MPN: 5783806771414REVDPC38SH2

5331-00-551-4793 (578-3806-771413REVCPC26)

NIIN: 00-551-4793
In stock
NSN: 5331-00-551-4793
FSC Code: 5331
MPN: 5783806771413REVCPC26

5331-00-551-4797 (578-3806-771414REVGPC46SH1)

NIIN: 00-551-4797
In stock
NSN: 5331-00-551-4797
FSC Code: 5331
MPN: 5783806771414REVGPC46SH1

5331-00-725-1066 (57743PC551)

NIIN: 00-725-1066
In stock
NSN: 5331-00-725-1066
FSC Code: 5331
MPN: 57743PC551

5331-01-537-1344 (207-70-331-81)

NIIN: 01-537-1344
In stock
NSN: 5331-01-537-1344
FSC Code: 5331
MPN: 2077033181

5331-01-461-9882 (2075W)

NIIN: 01-461-9882
In stock
NSN: 5331-01-461-9882
FSC Code: 5331
MPN: 2075W

5331-01-461-9886 (2075W)

NIIN: 01-461-9886
In stock
NSN: 5331-01-461-9886
FSC Code: 5331
MPN: 2075W

5331-01-383-1577 (207545-023)

NIIN: 01-383-1577
In stock
NSN: 5331-01-383-1577
FSC Code: 5331
MPN: 207545023

5331-00-079-2525 (576R618H04)

NIIN: 00-079-2525
In stock
NSN: 5331-00-079-2525
FSC Code: 5331
MPN: 576R618H04

5331-00-764-9944 (576C408P20)

NIIN: 00-764-9944
In stock
NSN: 5331-00-764-9944
FSC Code: 5331
MPN: 576C408P20

5331-00-999-9553 (576C384P22)

NIIN: 00-999-9553
In stock
NSN: 5331-00-999-9553
FSC Code: 5331
MPN: 576C384P22

5331-00-947-2286 (576C384P19)

NIIN: 00-947-2286
In stock
NSN: 5331-00-947-2286
FSC Code: 5331
MPN: 576C384P19

5331-00-051-4288 (576C384P9125)

NIIN: 00-051-4288
In stock
NSN: 5331-00-051-4288
FSC Code: 5331
MPN: 576C384P9125

5331-00-999-9552 (576C384P28)

NIIN: 00-999-9552
In stock
NSN: 5331-00-999-9552
FSC Code: 5331
MPN: 576C384P28

5331-00-375-7090 (576-4824-1506669REVAPC6261)

NIIN: 00-375-7090
In stock
NSN: 5331-00-375-7090
FSC Code: 5331
MPN: 57648241506669REVAPC6261

5331-00-446-8972 (576-34)

NIIN: 00-446-8972
In stock
NSN: 5331-00-446-8972
FSC Code: 5331
MPN: 57634

5331-01-221-7704 (576-2200-150534)

NIIN: 01-221-7704
In stock
NSN: 5331-01-221-7704
FSC Code: 5331
MPN: 5762200150534

5331-01-537-1359 (207-30-55121)

NIIN: 01-537-1359
In stock
NSN: 5331-01-537-1359
FSC Code: 5331
MPN: 2073055121

5331-01-566-9021 (207-30-00121)

NIIN: 01-566-9021
In stock
NSN: 5331-01-566-9021
FSC Code: 5331
MPN: 2073000121

5331-01-497-6118 (207-2813)

NIIN: 01-497-6118
In stock
NSN: 5331-01-497-6118
FSC Code: 5331
MPN: 2072813

5331-01-500-6183 (207-2814)

NIIN: 01-500-6183
In stock
NSN: 5331-01-500-6183
FSC Code: 5331
MPN: 2072814

5331-01-566-9011 (207-27-52350)

NIIN: 01-566-9011
In stock
NSN: 5331-01-566-9011
FSC Code: 5331
MPN: 2072752350

5331-01-503-6343 (20726B001REVLFINDNO.116D4)

NIIN: 01-503-6343
In stock
NSN: 5331-01-503-6343
FSC Code: 5331
MPN: 20726B001REVLFINDNO116D4

5331-00-059-3685 (575R946H11)

NIIN: 00-059-3685
In stock
NSN: 5331-00-059-3685
FSC Code: 5331
MPN: 575R946H11

5331-01-336-6718 (576-000)

NIIN: 01-336-6718
In stock
NSN: 5331-01-336-6718
FSC Code: 5331
MPN: 576000

5331-01-392-2750 (207-1862800SH2PC24)

NIIN: 01-392-2750
In stock
NSN: 5331-01-392-2750
FSC Code: 5331
MPN: 2071862800SH2PC24