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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.

5331-00-730-6298 (HPC133-08-5-26)

NIIN: 00-730-6298
In stock
NSN: 5331-00-730-6298
FSC Code: 5331
MPN: HPC13308526

5331-01-086-3509 (HP985903-1)

NIIN: 01-086-3509
In stock
NSN: 5331-01-086-3509
FSC Code: 5331
MPN: HP9859031

5331-01-123-7032 (HP54A)

NIIN: 01-123-7032
In stock
NSN: 5331-01-123-7032
FSC Code: 5331
MPN: HP54A

5331-01-218-1187 (HP506Z10)

NIIN: 01-218-1187
In stock
NSN: 5331-01-218-1187
FSC Code: 5331
MPN: HP506Z10

5331-01-190-1857 (HP501Z5B)

NIIN: 01-190-1857
In stock
NSN: 5331-01-190-1857
FSC Code: 5331
MPN: HP501Z5B

5331-01-190-1858 (HP501Z7BMIL)

NIIN: 01-190-1858
In stock
NSN: 5331-01-190-1858
FSC Code: 5331
MPN: HP501Z7BMIL

5331-01-216-9890 (HP500-021-1)

NIIN: 01-216-9890
In stock
NSN: 5331-01-216-9890
FSC Code: 5331
MPN: HP5000211

5331-00-187-0116 (HP500-018)

NIIN: 00-187-0116
In stock
NSN: 5331-00-187-0116
FSC Code: 5331
MPN: HP500018

5331-01-216-9889 (HP-500-018-1CP)

NIIN: 01-216-9889
In stock
NSN: 5331-01-216-9889
FSC Code: 5331
MPN: HP5000181CP

5331-01-206-8681 (HP2-4724)

NIIN: 01-206-8681
In stock
NSN: 5331-01-206-8681
FSC Code: 5331
MPN: HP24724

5331-01-124-8212 (HP20A)

NIIN: 01-124-8212
In stock
NSN: 5331-01-124-8212
FSC Code: 5331
MPN: HP20A

5331-01-123-3526 (HP23)

NIIN: 01-123-3526
In stock
NSN: 5331-01-123-3526
FSC Code: 5331
MPN: HP23

5331-01-303-8566 (HP0510150ER32A)

NIIN: 01-303-8566
In stock
NSN: 5331-01-303-8566
FSC Code: 5331
MPN: HP0510150ER32A

5331-01-303-8564 (HP0510150ER32A)

NIIN: 01-303-8564
In stock
NSN: 5331-01-303-8564
FSC Code: 5331
MPN: HP0510150ER32A

5331-01-303-8565 (HP0510150ER32A)

NIIN: 01-303-8565
In stock
NSN: 5331-01-303-8565
FSC Code: 5331
MPN: HP0510150ER32A

5331-01-286-9135 (HO-433)

NIIN: 01-286-9135
In stock
NSN: 5331-01-286-9135
FSC Code: 5331
MPN: HO433

5331-01-446-0059 (79008F01)

NIIN: 01-446-0059
In stock
NSN: 5331-01-446-0059
FSC Code: 5331
MPN: 79008F01

5331-01-350-5387 (S301407)

NIIN: 01-350-5387
In stock
NSN: 5331-01-350-5387
FSC Code: 5331
MPN: S301407

5331-01-532-7751 (S30662-3033)

NIIN: 01-532-7751
In stock
NSN: 5331-01-532-7751
FSC Code: 5331
MPN: S306623033

5331-01-260-8954 (HL19354)

NIIN: 01-260-8954
In stock
NSN: 5331-01-260-8954
FSC Code: 5331
MPN: HL19354

5331-01-200-0453 (HL-18828)

NIIN: 01-200-0453
In stock
NSN: 5331-01-200-0453
FSC Code: 5331
MPN: HL18828

5331-00-545-6835 (HIC10-10-22)

NIIN: 00-545-6835
In stock
NSN: 5331-00-545-6835
FSC Code: 5331
MPN: HIC101022

5331-01-262-5106 (HH-A01202)

NIIN: 01-262-5106
In stock
NSN: 5331-01-262-5106
FSC Code: 5331
MPN: HHA01202

5331-01-262-5109 (HH-A01210)

NIIN: 01-262-5109
In stock
NSN: 5331-01-262-5109
FSC Code: 5331
MPN: HHA01210

5331-01-262-5104 (HH-A01193)

NIIN: 01-262-5104
In stock
NSN: 5331-01-262-5104
FSC Code: 5331
MPN: HHA01193

5331-01-262-5105 (HH-A01194)

NIIN: 01-262-5105
In stock
NSN: 5331-01-262-5105
FSC Code: 5331
MPN: HHA01194

5331-01-262-5108 (HH-A01209)

NIIN: 01-262-5108
In stock
NSN: 5331-01-262-5108
FSC Code: 5331
MPN: HHA01209

5331-01-262-5103 (HH-A01192)

NIIN: 01-262-5103
In stock
NSN: 5331-01-262-5103
FSC Code: 5331
MPN: HHA01192

5331-01-200-0452 (HG1030-1)

NIIN: 01-200-0452
In stock
NSN: 5331-01-200-0452
FSC Code: 5331
MPN: HG10301

5331-01-420-8782 (7859-652-000)

NIIN: 01-420-8782
In stock
NSN: 5331-01-420-8782
FSC Code: 5331
MPN: 7859652000

5331-01-066-5345 (HDS1171-5-4)

NIIN: 01-066-5345
In stock
NSN: 5331-01-066-5345
FSC Code: 5331
MPN: HDS117154

5331-01-222-8981 (HD8300-G)

NIIN: 01-222-8981
In stock
NSN: 5331-01-222-8981
FSC Code: 5331
MPN: HD8300G

5331-01-220-7571 (HD8300-G)

NIIN: 01-220-7571
In stock
NSN: 5331-01-220-7571
FSC Code: 5331
MPN: HD8300G

5331-01-220-7572 (HD8300-G)

NIIN: 01-220-7572
In stock
NSN: 5331-01-220-7572
FSC Code: 5331
MPN: HD8300G

5331-01-220-7573 (HD8300-G)

NIIN: 01-220-7573
In stock
NSN: 5331-01-220-7573
FSC Code: 5331
MPN: HD8300G

5331-01-220-7570 (HD8300-G)

NIIN: 01-220-7570
In stock
NSN: 5331-01-220-7570
FSC Code: 5331
MPN: HD8300G

5331-01-220-7574 (HD8300-G)

NIIN: 01-220-7574
In stock
NSN: 5331-01-220-7574
FSC Code: 5331
MPN: HD8300G

5331-01-220-7569 (HD8300-G)

NIIN: 01-220-7569
In stock
NSN: 5331-01-220-7569
FSC Code: 5331
MPN: HD8300G

5331-01-383-3236 (7828-001)

NIIN: 01-383-3236
In stock
NSN: 5331-01-383-3236
FSC Code: 5331
MPN: 7828001

5331-01-473-2210 (782442-001)

NIIN: 01-473-2210
In stock
NSN: 5331-01-473-2210
FSC Code: 5331
MPN: 782442001

5331-15-163-3100 (78225F02)

NIIN: 15-163-3100
In stock
NSN: 5331-15-163-3100
FSC Code: 5331
MPN: 78225F02

5331-01-521-7088 (MIL-DTL-25988/4)

NIIN: 01-521-7088
In stock
NSN: 5331-01-521-7088
FSC Code: 5331
MPN: MILDTL259884

5331-01-416-1422 (78172-028)

NIIN: 01-416-1422
In stock
NSN: 5331-01-416-1422
FSC Code: 5331
MPN: 78172028

5331-01-521-7084 (78172-019)

NIIN: 01-521-7084
In stock
NSN: 5331-01-521-7084
FSC Code: 5331
MPN: 78172019

5331-01-483-7823 (78146-152)

NIIN: 01-483-7823
In stock
NSN: 5331-01-483-7823
FSC Code: 5331
MPN: 78146152

5331-01-566-2912 (78134-YG0-003)

NIIN: 01-566-2912
In stock
NSN: 5331-01-566-2912
FSC Code: 5331
MPN: 78134YG0003

5331-01-502-3868 (78115-907)

NIIN: 01-502-3868
In stock
NSN: 5331-01-502-3868
FSC Code: 5331
MPN: 78115907

5331-01-483-7822 (78114-022)

NIIN: 01-483-7822
In stock
NSN: 5331-01-483-7822
FSC Code: 5331
MPN: 78114022