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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.

5331-00-689-6485 (2-222)

NIIN: 00-689-6485
In stock
NSN: 5331-00-689-6485
FSC Code: 5331
MPN: 2222

5331-01-084-7279 (2-221S355-7)

NIIN: 01-084-7279
In stock
NSN: 5331-01-084-7279
FSC Code: 5331
MPN: 2221S3557

5331-01-234-0385 (2--222)

NIIN: 01-234-0385
In stock
NSN: 5331-01-234-0385
FSC Code: 5331
MPN: 2222

5331-01-204-4018 (2-222033)

NIIN: 01-204-4018
In stock
NSN: 5331-01-204-4018
FSC Code: 5331
MPN: 2222033

5331-01-526-5112 (671090005030)

NIIN: 01-526-5112
In stock
NSN: 5331-01-526-5112
FSC Code: 5331
MPN: 671090005030

5331-01-526-5113 (671090010440)

NIIN: 01-526-5113
In stock
NSN: 5331-01-526-5113
FSC Code: 5331
MPN: 671090010440

5331-01-562-8221 (700429065001)

NIIN: 01-562-8221
In stock
NSN: 5331-01-562-8221
FSC Code: 5331
MPN: 700429065001

5331-01-387-3585 (700429004000)

NIIN: 01-387-3585
In stock
NSN: 5331-01-387-3585
FSC Code: 5331
MPN: 700429004000

5331-01-571-2250 (ITEM420SEALRINGK07-MD-7.5)

NIIN: 01-571-2250
In stock
NSN: 5331-01-571-2250
FSC Code: 5331
MPN: ITEM420SEALRINGK07MD75

5331-12-198-9635 (700429085000)

NIIN: 12-198-9635
In stock
NSN: 5331-12-198-9635
FSC Code: 5331
MPN: 700429085000

5331-01-571-2255 (ITEM427SEALRINGK07-MD-7.5)

NIIN: 01-571-2255
In stock
NSN: 5331-01-571-2255
FSC Code: 5331
MPN: ITEM427SEALRINGK07MD75

5331-01-396-5886 (ED0012000060-S)

NIIN: 01-396-5886
In stock
NSN: 5331-01-396-5886
FSC Code: 5331
MPN: ED0012000060S

5331-01-508-2890 (770059180490)

NIIN: 01-508-2890
In stock
NSN: 5331-01-508-2890
FSC Code: 5331
MPN: 770059180490

5331-00-618-2518 (2-222-47-071)

NIIN: 00-618-2518
In stock
NSN: 5331-00-618-2518
FSC Code: 5331
MPN: 222247071

5331-00-031-1154 (2-222L449-60)

NIIN: 00-031-1154
In stock
NSN: 5331-00-031-1154
FSC Code: 5331
MPN: 2222L44960

5331-00-582-7144 (2-222E688-70)

NIIN: 00-582-7144
In stock
NSN: 5331-00-582-7144
FSC Code: 5331
MPN: 2222E68870

5331-00-455-2568 (2-222E515-8)

NIIN: 00-455-2568
In stock
NSN: 5331-00-455-2568
FSC Code: 5331
MPN: 2222E5158

5331-01-224-6788 (2-222N219-70)

NIIN: 01-224-6788
In stock
NSN: 5331-01-224-6788
FSC Code: 5331
MPN: 2222N21970

5331-00-444-3400 (2-222N304-75)

NIIN: 00-444-3400
In stock
NSN: 5331-00-444-3400
FSC Code: 5331
MPN: 2222N30475

5331-00-527-7748 (2-222N951-75)

NIIN: 00-527-7748
In stock
NSN: 5331-00-527-7748
FSC Code: 5331
MPN: 2222N95175

5331-00-930-5736 (2-222S1032-70)

NIIN: 00-930-5736
In stock
NSN: 5331-00-930-5736
FSC Code: 5331
MPN: 2222S103270

5331-01-124-8213 (2-223,143)

NIIN: 01-124-8213
In stock
NSN: 5331-01-124-8213
FSC Code: 5331
MPN: 2223143

5331-01-078-7253 (2-223-166)

NIIN: 01-078-7253
In stock
NSN: 5331-01-078-7253
FSC Code: 5331
MPN: 2223166

5331-00-595-6403 (2-223153)

NIIN: 00-595-6403
In stock
NSN: 5331-00-595-6403
FSC Code: 5331
MPN: 2223153

5331-01-078-6000 (2-223-167)

NIIN: 01-078-6000
In stock
NSN: 5331-01-078-6000
FSC Code: 5331
MPN: 2223167

5331-01-430-8819 (00781568142134)

NIIN: 01-430-8819
In stock
NSN: 5331-01-430-8819
FSC Code: 5331
MPN: 00781568142134

5331-01-430-8816 (00781568142141)

NIIN: 01-430-8816
In stock
NSN: 5331-01-430-8816
FSC Code: 5331
MPN: 00781568142141

5331-01-072-1113 (2-223-C147-70)

NIIN: 01-072-1113
In stock
NSN: 5331-01-072-1113
FSC Code: 5331
MPN: 2223C14770

5331-00-920-8523 (2-223-90DUR0METER)

NIIN: 00-920-8523
In stock
NSN: 5331-00-920-8523
FSC Code: 5331
MPN: 222390DUR0METER

5331-00-826-2973 (2-223E688-70)

NIIN: 00-826-2973
In stock
NSN: 5331-00-826-2973
FSC Code: 5331
MPN: 2223E68870

5331-00-250-1219 (2-223N180-70)

NIIN: 00-250-1219
In stock
NSN: 5331-00-250-1219
FSC Code: 5331
MPN: 2223N18070

5331-00-480-3304 (2-223N163-70)

NIIN: 00-480-3304
In stock
NSN: 5331-00-480-3304
FSC Code: 5331
MPN: 2223N16370

5331-00-914-5773 (2-223S1032-70)

NIIN: 00-914-5773
In stock
NSN: 5331-00-914-5773
FSC Code: 5331
MPN: 2223S103270

5331-01-218-7138 (2-224)

NIIN: 01-218-7138
In stock
NSN: 5331-01-218-7138
FSC Code: 5331
MPN: 2224

5331-01-184-8347 (2-224)

NIIN: 01-184-8347
In stock
NSN: 5331-01-184-8347
FSC Code: 5331
MPN: 2224

5331-00-599-0070 (2-223N299-50)

NIIN: 00-599-0070
In stock
NSN: 5331-00-599-0070
FSC Code: 5331
MPN: 2223N29950

5331-00-531-2260 (2-224)

NIIN: 00-531-2260
In stock
NSN: 5331-00-531-2260
FSC Code: 5331
MPN: 2224

5331-01-219-0454 (2-223S613-60)

NIIN: 01-219-0454
In stock
NSN: 5331-01-219-0454
FSC Code: 5331
MPN: 2223S61360

5331-01-274-4497 (2-224L1223-60)

NIIN: 01-274-4497
In stock
NSN: 5331-01-274-4497
FSC Code: 5331
MPN: 2224L122360

5331-00-549-6969 (2-224L742-80)

NIIN: 00-549-6969
In stock
NSN: 5331-00-549-6969
FSC Code: 5331
MPN: 2224L74280

5331-00-911-8235 (2-224E515-80)

NIIN: 00-911-8235
In stock
NSN: 5331-00-911-8235
FSC Code: 5331
MPN: 2224E51580

5331-01-013-1137 (2-224C873-70)

NIIN: 01-013-1137
In stock
NSN: 5331-01-013-1137
FSC Code: 5331
MPN: 2224C87370

5331-00-116-1418 (2-224-E540-80)

NIIN: 00-116-1418
In stock
NSN: 5331-00-116-1418
FSC Code: 5331
MPN: 2224E54080

5331-00-618-0227 (2-224-S604-7)

NIIN: 00-618-0227
In stock
NSN: 5331-00-618-0227
FSC Code: 5331
MPN: 2224S6047

5331-00-527-7939 (2-225)

NIIN: 00-527-7939
In stock
NSN: 5331-00-527-7939
FSC Code: 5331
MPN: 2225

5331-01-292-0165 (2-225)

NIIN: 01-292-0165
In stock
NSN: 5331-01-292-0165
FSC Code: 5331
MPN: 2225

5331-01-152-7208 (2-224V776-70)

NIIN: 01-152-7208
In stock
NSN: 5331-01-152-7208
FSC Code: 5331
MPN: 2224V77670

5331-00-422-0344 (2-225)

NIIN: 00-422-0344
In stock
NSN: 5331-00-422-0344
FSC Code: 5331
MPN: 2225