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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.

5331-01-546-3317 (R135526)

NIIN: 01-546-3317
In stock
NSN: 5331-01-546-3317
FSC Code: 5331
MPN: R135526

5331-01-570-5509 (R135482)

NIIN: 01-570-5509
In stock
NSN: 5331-01-570-5509
FSC Code: 5331
MPN: R135482

5331-01-567-4912 (R136314)

NIIN: 01-567-4912
In stock
NSN: 5331-01-567-4912
FSC Code: 5331
MPN: R136314

5331-01-510-3919 (R135510)

NIIN: 01-510-3919
In stock
NSN: 5331-01-510-3919
FSC Code: 5331
MPN: R135510

5331-01-457-9099 (R1309P904)

NIIN: 01-457-9099
In stock
NSN: 5331-01-457-9099
FSC Code: 5331
MPN: R1309P904

5331-01-492-9644 (R1312P210)

NIIN: 01-492-9644
In stock
NSN: 5331-01-492-9644
FSC Code: 5331
MPN: R1312P210

5331-25-150-3670 (R130)

NIIN: 25-150-3670
In stock
NSN: 5331-25-150-3670
FSC Code: 5331
MPN: R130

5331-01-464-3326 (R1309P908)

NIIN: 01-464-3326
In stock
NSN: 5331-01-464-3326
FSC Code: 5331
MPN: R1309P908

5331-01-492-9642 (R1310P033)

NIIN: 01-492-9642
In stock
NSN: 5331-01-492-9642
FSC Code: 5331
MPN: R1310P033

5331-01-475-3759 (R123273)

NIIN: 01-475-3759
In stock
NSN: 5331-01-475-3759
FSC Code: 5331
MPN: R123273

5331-01-476-3677 (R122430)

NIIN: 01-476-3677
In stock
NSN: 5331-01-476-3677
FSC Code: 5331
MPN: R122430

5331-01-460-2664 (R123575)

NIIN: 01-460-2664
In stock
NSN: 5331-01-460-2664
FSC Code: 5331
MPN: R123575

5331-01-475-3760 (R123295)

NIIN: 01-475-3760
In stock
NSN: 5331-01-475-3760
FSC Code: 5331
MPN: R123295

5331-01-540-6024 (RE116031)

NIIN: 01-540-6024
In stock
NSN: 5331-01-540-6024
FSC Code: 5331
MPN: RE116031

5331-01-570-9633 (R11-CR123)

NIIN: 01-570-9633
In stock
NSN: 5331-01-570-9633
FSC Code: 5331
MPN: R11CR123

5331-01-436-1674 (R113562)

NIIN: 01-436-1674
In stock
NSN: 5331-01-436-1674
FSC Code: 5331
MPN: R113562

5331-01-567-2744 (R113050)

NIIN: 01-567-2744
In stock
NSN: 5331-01-567-2744
FSC Code: 5331
MPN: R113050

5331-01-397-0336 (R11120)

NIIN: 01-397-0336
In stock
NSN: 5331-01-397-0336
FSC Code: 5331
MPN: R11120

5331-01-571-1292 (R112857)

NIIN: 01-571-1292
In stock
NSN: 5331-01-571-1292
FSC Code: 5331
MPN: R112857

5331-01-553-7961 (R111532)

NIIN: 01-553-7961
In stock
NSN: 5331-01-553-7961
FSC Code: 5331
MPN: R111532

5331-01-388-8523 (R106796)

NIIN: 01-388-8523
In stock
NSN: 5331-01-388-8523
FSC Code: 5331
MPN: R106796

5331-01-567-9040 (R105415)

NIIN: 01-567-9040
In stock
NSN: 5331-01-567-9040
FSC Code: 5331
MPN: R105415

5331-14-510-8868 (R07010X1000-21A7)

NIIN: 14-510-8868
In stock
NSN: 5331-14-510-8868
FSC Code: 5331
MPN: R07010X100021A7

5331-17-112-6425 (R00947/3000557-19)

NIIN: 17-112-6425
In stock
NSN: 5331-17-112-6425
FSC Code: 5331
MPN: R00947300055719

5331-17-112-6429 (R00950/2016973-19)

NIIN: 17-112-6429
In stock
NSN: 5331-17-112-6429
FSC Code: 5331
MPN: R00950201697319

5331-01-557-6613 (R0072038-0301)

NIIN: 01-557-6613
In stock
NSN: 5331-01-557-6613
FSC Code: 5331
MPN: R00720380301

5331-01-557-6612 (R0072037-0301)

NIIN: 01-557-6612
In stock
NSN: 5331-01-557-6612
FSC Code: 5331
MPN: R00720370301

5331-01-352-7473 (R0-008V)

NIIN: 01-352-7473
In stock
NSN: 5331-01-352-7473
FSC Code: 5331
MPN: R0008V

5331-01-384-4233 (R)

NIIN: 01-384-4233
In stock
NSN: 5331-01-384-4233
FSC Code: 5331
MPN: R

5331-01-384-4223 (R)

NIIN: 01-384-4223
In stock
NSN: 5331-01-384-4223
FSC Code: 5331
MPN: R

5331-01-537-1379 (R)

NIIN: 01-537-1379
In stock
NSN: 5331-01-537-1379
FSC Code: 5331
MPN: R

5331-01-384-4265 (R)

NIIN: 01-384-4265
In stock
NSN: 5331-01-384-4265
FSC Code: 5331
MPN: R

5331-01-384-4228 (R)

NIIN: 01-384-4228
In stock
NSN: 5331-01-384-4228
FSC Code: 5331
MPN: R

5331-01-538-3789 (QD-SD-7/8)

NIIN: 01-538-3789
In stock
NSN: 5331-01-538-3789
FSC Code: 5331
MPN: QDSD78

5331-01-564-5520 (QB1000-268)

NIIN: 01-564-5520
In stock
NSN: 5331-01-564-5520
FSC Code: 5331
MPN: QB1000268

5331-01-482-4659 (Q-79515)

NIIN: 01-482-4659
In stock
NSN: 5331-01-482-4659
FSC Code: 5331
MPN: Q79515

5331-01-505-7218 (Q79870)

NIIN: 01-505-7218
In stock
NSN: 5331-01-505-7218
FSC Code: 5331
MPN: Q79870

5331-01-527-4499 (Q4220-431T)

NIIN: 01-527-4499
In stock
NSN: 5331-01-527-4499
FSC Code: 5331
MPN: Q4220431T

5331-01-516-5096 (Q4233)

NIIN: 01-516-5096
In stock
NSN: 5331-01-516-5096
FSC Code: 5331
MPN: Q4233

5331-01-410-7925 (Q4021-70156A)

NIIN: 01-410-7925
In stock
NSN: 5331-01-410-7925
FSC Code: 5331
MPN: Q402170156A

5331-01-459-5728 (Q210N7127)

NIIN: 01-459-5728
In stock
NSN: 5331-01-459-5728
FSC Code: 5331
MPN: Q210N7127

5331-01-566-7848 (Q1006731)

NIIN: 01-566-7848
In stock
NSN: 5331-01-566-7848
FSC Code: 5331
MPN: Q1006731

5331-01-459-2046 (Q04188)

NIIN: 01-459-2046
In stock
NSN: 5331-01-459-2046
FSC Code: 5331
MPN: Q04188

5331-99-859-8174 (PX99901025)

NIIN: 99-859-8174
In stock
NSN: 5331-99-859-8174
FSC Code: 5331
MPN: PX99901025

5331-01-453-6485 (PWA81846-4)

NIIN: 01-453-6485
In stock
NSN: 5331-01-453-6485
FSC Code: 5331
MPN: PWA818464

5331-01-356-3148 (PVPE47-39)

NIIN: 01-356-3148
In stock
NSN: 5331-01-356-3148
FSC Code: 5331
MPN: PVPE4739

5331-01-356-7130 (PVPE47-29)

NIIN: 01-356-7130
In stock
NSN: 5331-01-356-7130
FSC Code: 5331
MPN: PVPE4729

5331-01-356-4454 (PVPE47-52)

NIIN: 01-356-4454
In stock
NSN: 5331-01-356-4454
FSC Code: 5331
MPN: PVPE4752