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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.

5331-01-420-9809 (PL-H25C0700001)

NIIN: 01-420-9809
In stock
NSN: 5331-01-420-9809
FSC Code: 5331
MPN: PLH25C0700001

5331-01-420-6692 (PL-H25C0700001)

NIIN: 01-420-6692
In stock
NSN: 5331-01-420-6692
FSC Code: 5331
MPN: PLH25C0700001

5331-01-512-1999 (D25-074-2110)

NIIN: 01-512-1999
In stock
NSN: 5331-01-512-1999
FSC Code: 5331
MPN: D250742110

5331-01-441-2823 (D25-046-2110)

NIIN: 01-441-2823
In stock
NSN: 5331-01-441-2823
FSC Code: 5331
MPN: D250462110

5331-01-443-1607 (D25-083-2110)

NIIN: 01-443-1607
In stock
NSN: 5331-01-443-1607
FSC Code: 5331
MPN: D250832110

5331-01-446-5609 (D25-074-2120)

NIIN: 01-446-5609
In stock
NSN: 5331-01-446-5609
FSC Code: 5331
MPN: D250742120

5331-01-420-6696 (PL-H25C0700001)

NIIN: 01-420-6696
In stock
NSN: 5331-01-420-6696
FSC Code: 5331
MPN: PLH25C0700001

5331-01-440-1372 (D-2502)

NIIN: 01-440-1372
In stock
NSN: 5331-01-440-1372
FSC Code: 5331
MPN: D2502

5331-01-420-6693 (PL-H25C0700001)

NIIN: 01-420-6693
In stock
NSN: 5331-01-420-6693
FSC Code: 5331
MPN: PLH25C0700001

5331-01-441-2826 (D25-034-2110)

NIIN: 01-441-2826
In stock
NSN: 5331-01-441-2826
FSC Code: 5331
MPN: D250342110

5331-01-441-4395 (D-2501-00)

NIIN: 01-441-4395
In stock
NSN: 5331-01-441-4395
FSC Code: 5331
MPN: D250100

5331-01-420-6694 (PL-H25C0700001)

NIIN: 01-420-6694
In stock
NSN: 5331-01-420-6694
FSC Code: 5331
MPN: PLH25C0700001

5331-01-440-1373 (D-2500)

NIIN: 01-440-1373
In stock
NSN: 5331-01-440-1373
FSC Code: 5331
MPN: D2500

5331-01-390-2068 (MIL-P-83461/1-027)

NIIN: 01-390-2068
In stock
NSN: 5331-01-390-2068
FSC Code: 5331
MPN: MILP834611027

5331-01-388-6481 (MIL-P-83461/1-025)

NIIN: 01-388-6481
In stock
NSN: 5331-01-388-6481
FSC Code: 5331
MPN: MILP834611025

5331-00-899-3325 (SMC414114-8)

NIIN: 00-899-3325
In stock
NSN: 5331-00-899-3325
FSC Code: 5331
MPN: SMC4141148

5331-00-899-3323 (SM-C-414114-3)

NIIN: 00-899-3323
In stock
NSN: 5331-00-899-3323
FSC Code: 5331
MPN: SMC4141143

5331-00-182-3024 (SM-C-414114-13)

NIIN: 00-182-3024
In stock
NSN: 5331-00-182-3024
FSC Code: 5331
MPN: SMC41411413

5331-01-379-8129 (D-2125-455-9205)

NIIN: 01-379-8129
In stock
NSN: 5331-01-379-8129
FSC Code: 5331
MPN: D21254559205

5331-01-461-4316 (D-2059-00)

NIIN: 01-461-4316
In stock
NSN: 5331-01-461-4316
FSC Code: 5331
MPN: D205900

5331-01-461-4315 (D-2058-00)

NIIN: 01-461-4315
In stock
NSN: 5331-01-461-4315
FSC Code: 5331
MPN: D205800

5331-01-437-9238 (D20306)

NIIN: 01-437-9238
In stock
NSN: 5331-01-437-9238
FSC Code: 5331
MPN: D20306

5331-01-369-9425 (D20276-110)

NIIN: 01-369-9425
In stock
NSN: 5331-01-369-9425
FSC Code: 5331
MPN: D20276110

5331-01-101-1370 (SM-B-963770)

NIIN: 01-101-1370
In stock
NSN: 5331-01-101-1370
FSC Code: 5331
MPN: SMB963770

5331-17-110-1540 (D-20028-A)

NIIN: 17-110-1540
In stock
NSN: 5331-17-110-1540
FSC Code: 5331
MPN: D20028A

5331-17-110-2294 (D-20028-A)

NIIN: 17-110-2294
In stock
NSN: 5331-17-110-2294
FSC Code: 5331
MPN: D20028A

5331-17-110-2289 (D-20028-A)

NIIN: 17-110-2289
In stock
NSN: 5331-17-110-2289
FSC Code: 5331
MPN: D20028A

5331-00-287-8929 (SMB728022-1)

NIIN: 00-287-8929
In stock
NSN: 5331-00-287-8929
FSC Code: 5331
MPN: SMB7280221

5331-00-285-5342 (SMB728022-2)

NIIN: 00-285-5342
In stock
NSN: 5331-00-285-5342
FSC Code: 5331
MPN: SMB7280222

5331-01-448-4771 (D-18162-2)

NIIN: 01-448-4771
In stock
NSN: 5331-01-448-4771
FSC Code: 5331
MPN: D181622

5331-01-410-8457 (D17620-NA-19)

NIIN: 01-410-8457
In stock
NSN: 5331-01-410-8457
FSC Code: 5331
MPN: D17620NA19

5331-01-398-4241 (D-171-300-R-13-307-CE-40)

NIIN: 01-398-4241
In stock
NSN: 5331-01-398-4241
FSC Code: 5331
MPN: D171300R13307CE40

5331-00-419-3145 (SMB450398)

NIIN: 00-419-3145
In stock
NSN: 5331-00-419-3145
FSC Code: 5331
MPN: SMB450398

5331-01-517-6062 (M83248/2-023CP)

NIIN: 01-517-6062
In stock
NSN: 5331-01-517-6062
FSC Code: 5331
MPN: M832482023CP

5331-01-495-0360 (M83248/1-914CP)

NIIN: 01-495-0360
In stock
NSN: 5331-01-495-0360
FSC Code: 5331
MPN: M832481914CP

5331-01-517-6066 (M83248/2-125CP)

NIIN: 01-517-6066
In stock
NSN: 5331-01-517-6066
FSC Code: 5331
MPN: M832482125CP

5331-01-098-3173 (SM-B-415687)

NIIN: 01-098-3173
In stock
NSN: 5331-01-098-3173
FSC Code: 5331
MPN: SMB415687

5331-01-480-3663 (D10-X021)

NIIN: 01-480-3663
In stock
NSN: 5331-01-480-3663
FSC Code: 5331
MPN: D10X021

5331-00-290-8815 (SM-B-208101)

NIIN: 00-290-8815
In stock
NSN: 5331-00-290-8815
FSC Code: 5331
MPN: SMB208101

5331-01-141-1862 (SM-B-207880-2)

NIIN: 01-141-1862
In stock
NSN: 5331-01-141-1862
FSC Code: 5331
MPN: SMB2078802

5331-00-180-9432 (SMB279803)

NIIN: 00-180-9432
In stock
NSN: 5331-00-180-9432
FSC Code: 5331
MPN: SMB279803

5331-01-125-5080 (SM-B-207880-3)

NIIN: 01-125-5080
In stock
NSN: 5331-01-125-5080
FSC Code: 5331
MPN: SMB2078803

5331-01-396-0481 (D-106406-3IN-ITEM)

NIIN: 01-396-0481
In stock
NSN: 5331-01-396-0481
FSC Code: 5331
MPN: D1064063INITEM

5331-01-395-8052 (D-106406-3IN-ITEM)

NIIN: 01-395-8052
In stock
NSN: 5331-01-395-8052
FSC Code: 5331
MPN: D1064063INITEM

5331-01-459-5126 (D1-027171)

NIIN: 01-459-5126
In stock
NSN: 5331-01-459-5126
FSC Code: 5331
MPN: D1027171

5331-01-420-6690 (PL-H25C0700001)

NIIN: 01-420-6690
In stock
NSN: 5331-01-420-6690
FSC Code: 5331
MPN: PLH25C0700001

5331-17-110-1499 (D-10027-A)

NIIN: 17-110-1499
In stock
NSN: 5331-17-110-1499
FSC Code: 5331
MPN: D10027A

5331-01-512-2013 (D10-083-2110)

NIIN: 01-512-2013
In stock
NSN: 5331-01-512-2013
FSC Code: 5331
MPN: D100832110