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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.

5331-01-503-4407 (231-37-1082)

NIIN: 01-503-4407
In stock
NSN: 5331-01-503-4407
FSC Code: 5331
MPN: 231371082

5331-01-333-5185 (604-80740)

NIIN: 01-333-5185
In stock
NSN: 5331-01-333-5185
FSC Code: 5331
MPN: 60480740

5331-01-423-1597 (231-27-1157)

NIIN: 01-423-1597
In stock
NSN: 5331-01-423-1597
FSC Code: 5331
MPN: 231271157

5331-01-423-1600 (231-27-1168)

NIIN: 01-423-1600
In stock
NSN: 5331-01-423-1600
FSC Code: 5331
MPN: 231271168

5331-01-435-2439 (PL.4013CCRE-2)

NIIN: 01-435-2439
In stock
NSN: 5331-01-435-2439
FSC Code: 5331
MPN: PL4013CCRE2

5331-01-509-1840 (231-27-1176)

NIIN: 01-509-1840
In stock
NSN: 5331-01-509-1840
FSC Code: 5331
MPN: 231271176

5331-01-509-1852 (231-27-1091)

NIIN: 01-509-1852
In stock
NSN: 5331-01-509-1852
FSC Code: 5331
MPN: 231271091

5331-01-509-1859 (231-27-1177)

NIIN: 01-509-1859
In stock
NSN: 5331-01-509-1859
FSC Code: 5331
MPN: 231271177

5331-01-423-1603 (231-27-1169)

NIIN: 01-423-1603
In stock
NSN: 5331-01-423-1603
FSC Code: 5331
MPN: 231271169

5331-01-421-9962 (231-27-1158)

NIIN: 01-421-9962
In stock
NSN: 5331-01-421-9962
FSC Code: 5331
MPN: 231271158

5331-01-381-6019 (231-27-1120)

NIIN: 01-381-6019
In stock
NSN: 5331-01-381-6019
FSC Code: 5331
MPN: 231271120

5331-01-380-3811 (PL-DH6080D-3)

NIIN: 01-380-3811
In stock
NSN: 5331-01-380-3811
FSC Code: 5331
MPN: PLDH6080D3

5331-01-398-7070 (231-27-1117)

NIIN: 01-398-7070
In stock
NSN: 5331-01-398-7070
FSC Code: 5331
MPN: 231271117

5331-01-525-0237 (PL.DH5060L-1)

NIIN: 01-525-0237
In stock
NSN: 5331-01-525-0237
FSC Code: 5331
MPN: PLDH5060L1

5331-01-423-5754 (231-27-1097)

NIIN: 01-423-5754
In stock
NSN: 5331-01-423-5754
FSC Code: 5331
MPN: 231271097

5331-01-408-9656 (231-27-1025)

NIIN: 01-408-9656
In stock
NSN: 5331-01-408-9656
FSC Code: 5331
MPN: 231271025

5331-00-758-0530 (60453-30)

NIIN: 00-758-0530
In stock
NSN: 5331-00-758-0530
FSC Code: 5331
MPN: 6045330

5331-00-758-0526 (60453-17)

NIIN: 00-758-0526
In stock
NSN: 5331-00-758-0526
FSC Code: 5331
MPN: 6045317

5331-00-758-0531 (60453-5)

NIIN: 00-758-0531
In stock
NSN: 5331-00-758-0531
FSC Code: 5331
MPN: 604535

5331-00-758-0529 (60453-7)

NIIN: 00-758-0529
In stock
NSN: 5331-00-758-0529
FSC Code: 5331
MPN: 604537

5331-01-528-5893 (23-10612-603)

NIIN: 01-528-5893
In stock
NSN: 5331-01-528-5893
FSC Code: 5331
MPN: 2310612603

5331-15-180-0017 (230X4)

NIIN: 15-180-0017
In stock
NSN: 5331-15-180-0017
FSC Code: 5331
MPN: 230X4

5331-01-367-8524 (230-932-265-777-001)

NIIN: 01-367-8524
In stock
NSN: 5331-01-367-8524
FSC Code: 5331
MPN: 230932265777001

5331-01-473-8773 (230-927-118-730-000)

NIIN: 01-473-8773
In stock
NSN: 5331-01-473-8773
FSC Code: 5331
MPN: 230927118730000

5331-01-554-5879 (230-927-225-730-000)

NIIN: 01-554-5879
In stock
NSN: 5331-01-554-5879
FSC Code: 5331
MPN: 230927225730000

5331-01-290-6089 (6040-V-136)

NIIN: 01-290-6089
In stock
NSN: 5331-01-290-6089
FSC Code: 5331
MPN: 6040V136

5331-01-393-2915 (230-927-209-730-000)

NIIN: 01-393-2915
In stock
NSN: 5331-01-393-2915
FSC Code: 5331
MPN: 230927209730000

5331-01-368-6112 (230-927-159-730-000)

NIIN: 01-368-6112
In stock
NSN: 5331-01-368-6112
FSC Code: 5331
MPN: 230927159730000

5331-01-421-6231 (230-927-018-730-000)

NIIN: 01-421-6231
In stock
NSN: 5331-01-421-6231
FSC Code: 5331
MPN: 230927018730000

5331-01-393-0303 (230-927-234-730-000)

NIIN: 01-393-0303
In stock
NSN: 5331-01-393-0303
FSC Code: 5331
MPN: 230927234730000

5331-01-393-0317 (230-927-022-730-000)

NIIN: 01-393-0317
In stock
NSN: 5331-01-393-0317
FSC Code: 5331
MPN: 230927022730000

5331-01-341-5400 (230-927-205-730-000)

NIIN: 01-341-5400
In stock
NSN: 5331-01-341-5400
FSC Code: 5331
MPN: 230927205730000

5331-01-341-5399 (230-927-214-777-000)

NIIN: 01-341-5399
In stock
NSN: 5331-01-341-5399
FSC Code: 5331
MPN: 230927214777000

5331-01-424-1843 (230-927-122-735-000)

NIIN: 01-424-1843
In stock
NSN: 5331-01-424-1843
FSC Code: 5331
MPN: 230927122735000

5331-01-456-6810 (230-927-109-730-000)

NIIN: 01-456-6810
In stock
NSN: 5331-01-456-6810
FSC Code: 5331
MPN: 230927109730000

5331-01-473-8770 (230-927-116-730-000)

NIIN: 01-473-8770
In stock
NSN: 5331-01-473-8770
FSC Code: 5331
MPN: 230927116730000

5331-01-289-4934 (6040-V-128)

NIIN: 01-289-4934
In stock
NSN: 5331-01-289-4934
FSC Code: 5331
MPN: 6040V128

5331-01-442-6944 (2307-05)

NIIN: 01-442-6944
In stock
NSN: 5331-01-442-6944
FSC Code: 5331
MPN: 230705

5331-01-563-7521 (OR3002920-N90)

NIIN: 01-563-7521
In stock
NSN: 5331-01-563-7521
FSC Code: 5331
MPN: OR3002920N90

5331-01-563-7518 (OR3007450-N90)

NIIN: 01-563-7518
In stock
NSN: 5331-01-563-7518
FSC Code: 5331
MPN: OR3007450N90

5331-01-422-6753 (2306-53)

NIIN: 01-422-6753
In stock
NSN: 5331-01-422-6753
FSC Code: 5331
MPN: 230653

5331-01-564-2455 (PG4400800-T46N)

NIIN: 01-564-2455
In stock
NSN: 5331-01-564-2455
FSC Code: 5331
MPN: PG4400800T46N

5331-01-442-7786 (2742XX0803)

NIIN: 01-442-7786
In stock
NSN: 5331-01-442-7786
FSC Code: 5331
MPN: 2742XX0803

5331-01-442-6949 (352258903264)

NIIN: 01-442-6949
In stock
NSN: 5331-01-442-6949
FSC Code: 5331
MPN: 352258903264

5331-01-441-9702 (2305-25)

NIIN: 01-441-9702
In stock
NSN: 5331-01-441-9702
FSC Code: 5331
MPN: 230525

5331-01-433-1529 (2-30459)

NIIN: 01-433-1529
In stock
NSN: 5331-01-433-1529
FSC Code: 5331
MPN: 230459

5331-01-342-0112 (V2-303-914-01)

NIIN: 01-342-0112
In stock
NSN: 5331-01-342-0112
FSC Code: 5331
MPN: V230391401

5331-01-072-8977 (6-030)

NIIN: 01-072-8977
In stock
NSN: 5331-01-072-8977
FSC Code: 5331
MPN: 6030