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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.

5331-01-481-8900 (659824C1)

NIIN: 01-481-8900
In stock
NSN: 5331-01-481-8900
FSC Code: 5331
MPN: 659824C1

5331-01-481-8800 (659726C1)

NIIN: 01-481-8800
In stock
NSN: 5331-01-481-8800
FSC Code: 5331
MPN: 659726C1

5331-01-481-8801 (659727C1)

NIIN: 01-481-8801
In stock
NSN: 5331-01-481-8801
FSC Code: 5331
MPN: 659727C1

5331-01-481-8818 (659721C1)

NIIN: 01-481-8818
In stock
NSN: 5331-01-481-8818
FSC Code: 5331
MPN: 659721C1

5331-01-481-8894 (659720C1)

NIIN: 01-481-8894
In stock
NSN: 5331-01-481-8894
FSC Code: 5331
MPN: 659720C1

5331-00-067-9245 (CGAS4603)

NIIN: 00-067-9245
In stock
NSN: 5331-00-067-9245
FSC Code: 5331
MPN: CGAS4603

5331-01-432-5158 (803-1385712-9-2)

NIIN: 01-432-5158
In stock
NSN: 5331-01-432-5158
FSC Code: 5331
MPN: 803138571292

5331-01-431-8241 (6592-W-993)

NIIN: 01-431-8241
In stock
NSN: 5331-01-431-8241
FSC Code: 5331
MPN: 6592W993

5331-01-154-8456 (CG81029S-72)

NIIN: 01-154-8456
In stock
NSN: 5331-01-154-8456
FSC Code: 5331
MPN: CG81029S72

5331-01-453-5189 (6581-027-925)

NIIN: 01-453-5189
In stock
NSN: 5331-01-453-5189
FSC Code: 5331
MPN: 6581027925

5331-01-453-5406 (6581-125-925)

NIIN: 01-453-5406
In stock
NSN: 5331-01-453-5406
FSC Code: 5331
MPN: 6581125925

5331-01-452-0883 (6581-232-925)

NIIN: 01-452-0883
In stock
NSN: 5331-01-452-0883
FSC Code: 5331
MPN: 6581232925

5331-01-525-7717 (6581-130-925)

NIIN: 01-525-7717
In stock
NSN: 5331-01-525-7717
FSC Code: 5331
MPN: 6581130925

5331-01-525-7723 (6581-Z-925)

NIIN: 01-525-7723
In stock
NSN: 5331-01-525-7723
FSC Code: 5331
MPN: 6581Z925

5331-01-453-5179 (6581-023-925)

NIIN: 01-453-5179
In stock
NSN: 5331-01-453-5179
FSC Code: 5331
MPN: 6581023925

5331-01-453-5167 (6581-022-925)

NIIN: 01-453-5167
In stock
NSN: 5331-01-453-5167
FSC Code: 5331
MPN: 6581022925

5331-01-535-5762 (6575-K-920)

NIIN: 01-535-5762
In stock
NSN: 5331-01-535-5762
FSC Code: 5331
MPN: 6575K920

5331-01-452-0875 (6572-134-920)

NIIN: 01-452-0875
In stock
NSN: 5331-01-452-0875
FSC Code: 5331
MPN: 6572134920

5331-01-452-0874 (6572-129-920)

NIIN: 01-452-0874
In stock
NSN: 5331-01-452-0874
FSC Code: 5331
MPN: 6572129920

5331-01-454-4046 (6572-130-920)

NIIN: 01-454-4046
In stock
NSN: 5331-01-454-4046
FSC Code: 5331
MPN: 6572130920

5331-01-449-6803 (6572-017-920)

NIIN: 01-449-6803
In stock
NSN: 5331-01-449-6803
FSC Code: 5331
MPN: 6572017920

5331-01-535-5781 (6572-011-920)

NIIN: 01-535-5781
In stock
NSN: 5331-01-535-5781
FSC Code: 5331
MPN: 6572011920

5331-01-424-5743 (6562REVCITEM13)

NIIN: 01-424-5743
In stock
NSN: 5331-01-424-5743
FSC Code: 5331
MPN: 6562REVCITEM13

5331-01-304-3460 (CEC5091C-0748-60)

NIIN: 01-304-3460
In stock
NSN: 5331-01-304-3460
FSC Code: 5331
MPN: CEC5091C074860

5331-01-077-0504 (CEC4369-139-18-912)

NIIN: 01-077-0504
In stock
NSN: 5331-01-077-0504
FSC Code: 5331
MPN: CEC436913918912

5331-01-034-8839 (CEC4369-139-13-478)

NIIN: 01-034-8839
In stock
NSN: 5331-01-034-8839
FSC Code: 5331
MPN: CEC436913913478

5331-01-034-8838 (CEC4369-139-11-593)

NIIN: 01-034-8838
In stock
NSN: 5331-01-034-8838
FSC Code: 5331
MPN: CEC436913911593

5331-01-034-8837 (CEC4369-139-10-163)

NIIN: 01-034-8837
In stock
NSN: 5331-01-034-8837
FSC Code: 5331
MPN: CEC436913910163

5331-00-524-0547 (CEC3335)

NIIN: 00-524-0547
In stock
NSN: 5331-00-524-0547
FSC Code: 5331
MPN: CEC3335

5331-01-446-8971 (6554-21)

NIIN: 01-446-8971
In stock
NSN: 5331-01-446-8971
FSC Code: 5331
MPN: 655421

5331-01-397-1122 (654E4645-660)

NIIN: 01-397-1122
In stock
NSN: 5331-01-397-1122
FSC Code: 5331
MPN: 654E4645660

5331-01-571-8443 (6544425-2)

NIIN: 01-571-8443
In stock
NSN: 5331-01-571-8443
FSC Code: 5331
MPN: 65444252

5331-01-571-4334 (6544425-3)

NIIN: 01-571-4334
In stock
NSN: 5331-01-571-4334
FSC Code: 5331
MPN: 65444253

5331-01-572-2261 (6544425-4)

NIIN: 01-572-2261
In stock
NSN: 5331-01-572-2261
FSC Code: 5331
MPN: 65444254

5331-01-571-3608 (6544425-1)

NIIN: 01-571-3608
In stock
NSN: 5331-01-571-3608
FSC Code: 5331
MPN: 65444251

5331-00-468-7060 (CD5330-02502-001)

NIIN: 00-468-7060
In stock
NSN: 5331-00-468-7060
FSC Code: 5331
MPN: CD533002502001

5331-01-022-9270 (CD-1521PC25)

NIIN: 01-022-9270
In stock
NSN: 5331-01-022-9270
FSC Code: 5331
MPN: CD1521PC25

5331-01-190-1874 (CCV7)

NIIN: 01-190-1874
In stock
NSN: 5331-01-190-1874
FSC Code: 5331
MPN: CCV7

5331-01-192-2120 (CCV36)

NIIN: 01-192-2120
In stock
NSN: 5331-01-192-2120
FSC Code: 5331
MPN: CCV36

5331-01-190-1873 (CCV4)

NIIN: 01-190-1873
In stock
NSN: 5331-01-190-1873
FSC Code: 5331
MPN: CCV4

5331-01-190-1875 (CCV14)

NIIN: 01-190-1875
In stock
NSN: 5331-01-190-1875
FSC Code: 5331
MPN: CCV14

5331-01-192-6345 (CCV22)

NIIN: 01-192-6345
In stock
NSN: 5331-01-192-6345
FSC Code: 5331
MPN: CCV22

5331-01-417-7264 (6518-K)

NIIN: 01-417-7264
In stock
NSN: 5331-01-417-7264
FSC Code: 5331
MPN: 6518K

5331-01-441-0605 (65164-068-993)

NIIN: 01-441-0605
In stock
NSN: 5331-01-441-0605
FSC Code: 5331
MPN: 65164068993

5331-01-441-0604 (65164-032-993)

NIIN: 01-441-0604
In stock
NSN: 5331-01-441-0604
FSC Code: 5331
MPN: 65164032993

5331-01-450-3541 (65164-044-993)

NIIN: 01-450-3541
In stock
NSN: 5331-01-450-3541
FSC Code: 5331
MPN: 65164044993

5331-01-005-6633 (CC-5045-45A)

NIIN: 01-005-6633
In stock
NSN: 5331-01-005-6633
FSC Code: 5331
MPN: CC504545A

5331-01-215-5129 (CC-1473)

NIIN: 01-215-5129
In stock
NSN: 5331-01-215-5129
FSC Code: 5331
MPN: CC1473