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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.

5331-01-267-2136 (PA201-SC1532XSC3-19)

NIIN: 01-267-2136
In stock
NSN: 5331-01-267-2136
FSC Code: 5331
MPN: PA201SC1532XSC319

5331-01-252-7149 (PA2123032X-6-19)

NIIN: 01-252-7149
In stock
NSN: 5331-01-252-7149
FSC Code: 5331
MPN: PA2123032X619

5331-01-272-6453 (PA201-SC1532XG03-19)

NIIN: 01-272-6453
In stock
NSN: 5331-01-272-6453
FSC Code: 5331
MPN: PA201SC1532XG0319

5331-01-124-2966 (PA18364-00)

NIIN: 01-124-2966
In stock
NSN: 5331-01-124-2966
FSC Code: 5331
MPN: PA1836400

5331-01-276-8190 (PA156D1562B18-15)

NIIN: 01-276-8190
In stock
NSN: 5331-01-276-8190
FSC Code: 5331
MPN: PA156D1562B1815

5331-01-469-2954 (M70341/1-112)

NIIN: 01-469-2954
In stock
NSN: 5331-01-469-2954
FSC Code: 5331
MPN: M703411112

5331-01-124-2968 (PA18364-00)

NIIN: 01-124-2968
In stock
NSN: 5331-01-124-2968
FSC Code: 5331
MPN: PA1836400

5331-01-259-6184 (PA1501512B10-18)

NIIN: 01-259-6184
In stock
NSN: 5331-01-259-6184
FSC Code: 5331
MPN: PA1501512B1018

5331-01-124-2965 (PA18364-00)

NIIN: 01-124-2965
In stock
NSN: 5331-01-124-2965
FSC Code: 5331
MPN: PA1836400

5331-01-235-3029 (PA18343-1)

NIIN: 01-235-3029
In stock
NSN: 5331-01-235-3029
FSC Code: 5331
MPN: PA183431

5331-01-276-9041 (PA1501512A12I-18)

NIIN: 01-276-9041
In stock
NSN: 5331-01-276-9041
FSC Code: 5331
MPN: PA1501512A12I18

5331-00-235-9507 (PA1274)

NIIN: 00-235-9507
In stock
NSN: 5331-00-235-9507
FSC Code: 5331
MPN: PA1274

5331-01-260-4676 (PA1501512A12G-18)

NIIN: 01-260-4676
In stock
NSN: 5331-01-260-4676
FSC Code: 5331
MPN: PA1501512A12G18

5331-01-259-9262 (PA155D1512B12-18)

NIIN: 01-259-9262
In stock
NSN: 5331-01-259-9262
FSC Code: 5331
MPN: PA155D1512B1218

5331-01-258-7737 (PA1501512A12H-18)

NIIN: 01-258-7737
In stock
NSN: 5331-01-258-7737
FSC Code: 5331
MPN: PA1501512A12H18

5331-01-520-8473 (B1020.903)

NIIN: 01-520-8473
In stock
NSN: 5331-01-520-8473
FSC Code: 5331
MPN: B1020903

5331-01-259-9263 (PA1501512A12D-18)

NIIN: 01-259-9263
In stock
NSN: 5331-01-259-9263
FSC Code: 5331
MPN: PA1501512A12D18

5331-01-346-1476 (B1012.903)

NIIN: 01-346-1476
In stock
NSN: 5331-01-346-1476
FSC Code: 5331
MPN: B1012903

5331-01-530-0906 (B-10097)

NIIN: 01-530-0906
In stock
NSN: 5331-01-530-0906
FSC Code: 5331
MPN: B10097

5331-01-260-8809 (PA1011512XGA6-18)

NIIN: 01-260-8809
In stock
NSN: 5331-01-260-8809
FSC Code: 5331
MPN: PA1011512XGA618

5331-01-252-0468 (PA1011512X-12-18)

NIIN: 01-252-0468
In stock
NSN: 5331-01-252-0468
FSC Code: 5331
MPN: PA1011512X1218

5331-01-249-3620 (PA111D1512B6-18)

NIIN: 01-249-3620
In stock
NSN: 5331-01-249-3620
FSC Code: 5331
MPN: PA111D1512B618

5331-01-254-2403 (PA1011512X04-18)

NIIN: 01-254-2403
In stock
NSN: 5331-01-254-2403
FSC Code: 5331
MPN: PA1011512X0418

5331-01-258-8451 (PA1011512XGA-18)

NIIN: 01-258-8451
In stock
NSN: 5331-01-258-8451
FSC Code: 5331
MPN: PA1011512XGA18

5331-01-487-4336 (B-10100-153)

NIIN: 01-487-4336
In stock
NSN: 5331-01-487-4336
FSC Code: 5331
MPN: B10100153

5331-01-251-4691 (PA1011512X18-18)

NIIN: 01-251-4691
In stock
NSN: 5331-01-251-4691
FSC Code: 5331
MPN: PA1011512X1818

5331-01-346-0295 (B1005.503)

NIIN: 01-346-0295
In stock
NSN: 5331-01-346-0295
FSC Code: 5331
MPN: B1005503

5331-01-530-0767 (B-10067)

NIIN: 01-530-0767
In stock
NSN: 5331-01-530-0767
FSC Code: 5331
MPN: B10067

5331-01-563-4907 (B1000-2X185)

NIIN: 01-563-4907
In stock
NSN: 5331-01-563-4907
FSC Code: 5331
MPN: B10002X185

5331-01-563-1320 (B1000-2X8)

NIIN: 01-563-1320
In stock
NSN: 5331-01-563-1320
FSC Code: 5331
MPN: B10002X8

5331-01-564-0109 (B1000-1.78)

NIIN: 01-564-0109
In stock
NSN: 5331-01-564-0109
FSC Code: 5331
MPN: B1000178

5331-01-037-5478 (P9737A)

NIIN: 01-037-5478
In stock
NSN: 5331-01-037-5478
FSC Code: 5331
MPN: P9737A

5331-01-571-3891 (B0612-705-329)

NIIN: 01-571-3891
In stock
NSN: 5331-01-571-3891
FSC Code: 5331
MPN: B0612705329

5331-01-566-4964 (B0612)

NIIN: 01-566-4964
In stock
NSN: 5331-01-566-4964
FSC Code: 5331
MPN: B0612

5331-99-471-5003 (BS1806-240)

NIIN: 99-471-5003
In stock
NSN: 5331-99-471-5003
FSC Code: 5331
MPN: BS1806240

5331-99-988-8247 (BS1806-242)

NIIN: 99-988-8247
In stock
NSN: 5331-99-988-8247
FSC Code: 5331
MPN: BS1806242

5331-00-960-9685 (P91112)

NIIN: 00-960-9685
In stock
NSN: 5331-00-960-9685
FSC Code: 5331
MPN: P91112

5331-01-566-4965 (B0318)

NIIN: 01-566-4965
In stock
NSN: 5331-01-566-4965
FSC Code: 5331
MPN: B0318

5331-01-333-2698 (P91187)

NIIN: 01-333-2698
In stock
NSN: 5331-01-333-2698
FSC Code: 5331
MPN: P91187

5331-01-205-4254 (P90)

NIIN: 01-205-4254
In stock
NSN: 5331-01-205-4254
FSC Code: 5331
MPN: P90

5331-01-205-4257 (P90)

NIIN: 01-205-4257
In stock
NSN: 5331-01-205-4257
FSC Code: 5331
MPN: P90

5331-99-987-5752 (BS1806-012)

NIIN: 99-987-5752
In stock
NSN: 5331-99-987-5752
FSC Code: 5331
MPN: BS1806012

5331-01-267-0108 (P-84444-13)

NIIN: 01-267-0108
In stock
NSN: 5331-01-267-0108
FSC Code: 5331
MPN: P8444413

5331-01-528-2394 (B00062A4)

NIIN: 01-528-2394
In stock
NSN: 5331-01-528-2394
FSC Code: 5331
MPN: B00062A4

5331-01-528-2410 (B00062A4)

NIIN: 01-528-2410
In stock
NSN: 5331-01-528-2410
FSC Code: 5331
MPN: B00062A4

5331-01-528-2419 (B00062A4)

NIIN: 01-528-2419
In stock
NSN: 5331-01-528-2419
FSC Code: 5331
MPN: B00062A4

5331-01-528-2403 (B00062A4)

NIIN: 01-528-2403
In stock
NSN: 5331-01-528-2403
FSC Code: 5331
MPN: B00062A4

5331-01-445-7754 (B00062A3)

NIIN: 01-445-7754
In stock
NSN: 5331-01-445-7754
FSC Code: 5331
MPN: B00062A3