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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.

5331-01-331-1133 (2772/20030)

NIIN: 01-331-1133
In stock
NSN: 5331-01-331-1133
FSC Code: 5331
MPN: 277220030

5331-01-462-0742 (19-00F128-1285)

NIIN: 01-462-0742
In stock
NSN: 5331-01-462-0742
FSC Code: 5331
MPN: 1900F1281285

5331-01-125-0935 (276V)

NIIN: 01-125-0935
In stock
NSN: 5331-01-125-0935
FSC Code: 5331
MPN: 276V

5331-01-271-2422 (276-01)

NIIN: 01-271-2422
In stock
NSN: 5331-01-271-2422
FSC Code: 5331
MPN: 27601

5331-01-271-9377 (276-02)

NIIN: 01-271-9377
In stock
NSN: 5331-01-271-9377
FSC Code: 5331
MPN: 27602

5331-01-317-9511 (276.1261.046)

NIIN: 01-317-9511
In stock
NSN: 5331-01-317-9511
FSC Code: 5331
MPN: 2761261046

5331-01-441-1025 (0863-01-1)

NIIN: 01-441-1025
In stock
NSN: 5331-01-441-1025
FSC Code: 5331
MPN: 0863011

5331-01-441-1023 (0863-01-0)

NIIN: 01-441-1023
In stock
NSN: 5331-01-441-1023
FSC Code: 5331
MPN: 0863010

5331-01-549-1032 (085174-2ITEM224)

NIIN: 01-549-1032
In stock
NSN: 5331-01-549-1032
FSC Code: 5331
MPN: 0851742ITEM224

5331-14-265-5071 (08509F3300A50D6)

NIIN: 14-265-5071
In stock
NSN: 5331-14-265-5071
FSC Code: 5331
MPN: 08509F3300A50D6

5331-12-346-3325 (084461-N)

NIIN: 12-346-3325
In stock
NSN: 5331-12-346-3325
FSC Code: 5331
MPN: 084461N

5331-01-433-5481 (REV P1 FIND NO 18 117151005REVP1FINDNO18)

NIIN: 01-433-5481
In stock
NSN: 5331-01-433-5481
FSC Code: 5331
MPN: REVP1FINDNO18117151005REVP1FINDNO18

5331-01-459-5438 (0-8-3-8)

NIIN: 01-459-5438
In stock
NSN: 5331-01-459-5438
FSC Code: 5331
MPN: 0838

5331-01-462-6561 (0-8-3-5)

NIIN: 01-462-6561
In stock
NSN: 5331-01-462-6561
FSC Code: 5331
MPN: 0835

5331-01-136-6140 (27475R1)

NIIN: 01-136-6140
In stock
NSN: 5331-01-136-6140
FSC Code: 5331
MPN: 27475R1

5331-01-359-8770 (MIL-P-25732-37.)

NIIN: 01-359-8770
In stock
NSN: 5331-01-359-8770
FSC Code: 5331
MPN: MILP2573237

5331-01-360-4765 (MIL-P-25732-22.625IDX.210)

NIIN: 01-360-4765
In stock
NSN: 5331-01-360-4765
FSC Code: 5331
MPN: MILP2573222625IDX210

5331-01-543-2128 (FN 46 114452060FN46)

NIIN: 01-543-2128
In stock
NSN: 5331-01-543-2128
FSC Code: 5331
MPN: FN46114452060FN46

5331-01-361-7529 (E200FA420C4)

NIIN: 01-361-7529
In stock
NSN: 5331-01-361-7529
FSC Code: 5331
MPN: E200FA420C4

5331-01-460-2342 (0-8-3-15)

NIIN: 01-460-2342
In stock
NSN: 5331-01-460-2342
FSC Code: 5331
MPN: 08315

5331-01-540-9575 (083-0811-01)

NIIN: 01-540-9575
In stock
NSN: 5331-01-540-9575
FSC Code: 5331
MPN: 083081101

5331-01-540-9745 (2-261-N674-70)

NIIN: 01-540-9745
In stock
NSN: 5331-01-540-9745
FSC Code: 5331
MPN: 2261N67470

5331-01-540-9566 (200-037-4470)

NIIN: 01-540-9566
In stock
NSN: 5331-01-540-9566
FSC Code: 5331
MPN: 2000374470

5331-01-540-9749 (083-0800-03)

NIIN: 01-540-9749
In stock
NSN: 5331-01-540-9749
FSC Code: 5331
MPN: 083080003

5331-01-540-9572 (2-035-N674-70N)

NIIN: 01-540-9572
In stock
NSN: 5331-01-540-9572
FSC Code: 5331
MPN: 2035N67470N

5331-01-560-7675 (083-0811-01)

NIIN: 01-560-7675
In stock
NSN: 5331-01-560-7675
FSC Code: 5331
MPN: 083081101

5331-01-455-8423 (AMS-P-83461/1)

NIIN: 01-455-8423
In stock
NSN: 5331-01-455-8423
FSC Code: 5331
MPN: AMSP834611

5331-00-816-1022 (27-450-0508-2)

NIIN: 00-816-1022
In stock
NSN: 5331-00-816-1022
FSC Code: 5331
MPN: 2745005082

5331-01-350-2890 (082-49800-97)

NIIN: 01-350-2890
In stock
NSN: 5331-01-350-2890
FSC Code: 5331
MPN: 0824980097

5331-00-816-1021 (27-450-0508-1)

NIIN: 00-816-1021
In stock
NSN: 5331-00-816-1021
FSC Code: 5331
MPN: 2745005081

5331-01-012-2304 (27-448-T)

NIIN: 01-012-2304
In stock
NSN: 5331-01-012-2304
FSC Code: 5331
MPN: 27448T

5331-99-202-7529 (0821AWDDDH1B13)

NIIN: 99-202-7529
In stock
NSN: 5331-99-202-7529
FSC Code: 5331
MPN: 0821AWDDDH1B13

5331-01-543-2127 (FN 18 114451003FN18)

NIIN: 01-543-2127
In stock
NSN: 5331-01-543-2127
FSC Code: 5331
MPN: FN18114451003FN18

5331-01-434-3379 (082-005-0020)

NIIN: 01-434-3379
In stock
NSN: 5331-01-434-3379
FSC Code: 5331
MPN: 0820050020

5331-01-460-1242 (0-8-1-26)

NIIN: 01-460-1242
In stock
NSN: 5331-01-460-1242
FSC Code: 5331
MPN: 08126

5331-01-459-5437 (0-8-1-24)

NIIN: 01-459-5437
In stock
NSN: 5331-01-459-5437
FSC Code: 5331
MPN: 08124

5331-01-527-1465 (FN 40 112552000FN40)

NIIN: 01-527-1465
In stock
NSN: 5331-01-527-1465
FSC Code: 5331
MPN: FN40112552000FN40

5331-00-988-7219 (27-409-987)

NIIN: 00-988-7219
In stock
NSN: 5331-00-988-7219
FSC Code: 5331
MPN: 27409987

5331-01-453-6137 (4018-00-0011-00-10)

NIIN: 01-453-6137
In stock
NSN: 5331-01-453-6137
FSC Code: 5331
MPN: 40180000110010

5331-01-158-0300 (2-740-104-001-3)

NIIN: 01-158-0300
In stock
NSN: 5331-01-158-0300
FSC Code: 5331
MPN: 27401040013

5331-01-478-5310 (080G010-12)

NIIN: 01-478-5310
In stock
NSN: 5331-01-478-5310
FSC Code: 5331
MPN: 080G01012

5331-01-158-8172 (2-740-018-001-3)

NIIN: 01-158-8172
In stock
NSN: 5331-01-158-8172
FSC Code: 5331
MPN: 27400180013

5331-01-452-7251 (0-808-010-200)

NIIN: 01-452-7251
In stock
NSN: 5331-01-452-7251
FSC Code: 5331
MPN: 0808010200

5331-01-467-1985 (08-08111)

NIIN: 01-467-1985
In stock
NSN: 5331-01-467-1985
FSC Code: 5331
MPN: 0808111

5331-01-348-8333 (080-49800-105)

NIIN: 01-348-8333
In stock
NSN: 5331-01-348-8333
FSC Code: 5331
MPN: 08049800105

5331-01-060-2663 (27-370-01240)

NIIN: 01-060-2663
In stock
NSN: 5331-01-060-2663
FSC Code: 5331
MPN: 2737001240

5331-01-406-3754 (080-29123-85)

NIIN: 01-406-3754
In stock
NSN: 5331-01-406-3754
FSC Code: 5331
MPN: 0802912385

5331-01-258-8990 (27-34486-1)

NIIN: 01-258-8990
In stock
NSN: 5331-01-258-8990
FSC Code: 5331
MPN: 27344861