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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.

5331-01-227-9872 (A356A044-101)

NIIN: 01-227-9872
In stock
NSN: 5331-01-227-9872
FSC Code: 5331
MPN: A356A044101

5331-00-860-2552 (A35492)

NIIN: 00-860-2552
In stock
NSN: 5331-00-860-2552
FSC Code: 5331
MPN: A35492

5331-01-125-1099 (A34WR1-4)

NIIN: 01-125-1099
In stock
NSN: 5331-01-125-1099
FSC Code: 5331
MPN: A34WR14

5331-01-346-3808 (5520438-1)

NIIN: 01-346-3808
In stock
NSN: 5331-01-346-3808
FSC Code: 5331
MPN: 55204381

5331-01-546-1951 (55200-064946)

NIIN: 01-546-1951
In stock
NSN: 5331-01-546-1951
FSC Code: 5331
MPN: 55200064946

5331-01-535-6116 (551A-11)

NIIN: 01-535-6116
In stock
NSN: 5331-01-535-6116
FSC Code: 5331
MPN: 551A11

5331-01-470-2127 (551-6685219-9)

NIIN: 01-470-2127
In stock
NSN: 5331-01-470-2127
FSC Code: 5331
MPN: 55166852199

5331-01-124-6392 (A337-EDITEMG5)

NIIN: 01-124-6392
In stock
NSN: 5331-01-124-6392
FSC Code: 5331
MPN: A337EDITEMG5

5331-01-513-2351 (5-508N674-70)

NIIN: 01-513-2351
In stock
NSN: 5331-01-513-2351
FSC Code: 5331
MPN: 5508N67470

5331-99-245-1124 (5505-4301)

NIIN: 99-245-1124
In stock
NSN: 5331-99-245-1124
FSC Code: 5331
MPN: 55054301

5331-99-700-8207 (5505-4301)

NIIN: 99-700-8207
In stock
NSN: 5331-99-700-8207
FSC Code: 5331
MPN: 55054301

5331-12-344-6600 (055002 700429055002)

NIIN: 12-344-6600
In stock
NSN: 5331-12-344-6600
FSC Code: 5331
MPN: 055002700429055002

5331-01-530-9772 (54-SL-5119DD0)

NIIN: 01-530-9772
In stock
NSN: 5331-01-530-9772
FSC Code: 5331
MPN: 54SL5119DD0

5331-01-009-3987 (A320112-18)

NIIN: 01-009-3987
In stock
NSN: 5331-01-009-3987
FSC Code: 5331
MPN: A32011218

5331-00-989-0403 (A320112-7)

NIIN: 00-989-0403
In stock
NSN: 5331-00-989-0403
FSC Code: 5331
MPN: A3201127

5331-00-989-0405 (A320112-5)

NIIN: 00-989-0405
In stock
NSN: 5331-00-989-0405
FSC Code: 5331
MPN: A3201125

5331-01-382-4084 (5497182-4)

NIIN: 01-382-4084
In stock
NSN: 5331-01-382-4084
FSC Code: 5331
MPN: 54971824

5331-01-522-3050 (552-6903415)

NIIN: 01-522-3050
In stock
NSN: 5331-01-522-3050
FSC Code: 5331
MPN: 5526903415

5331-01-252-5104 (A3190R)

NIIN: 01-252-5104
In stock
NSN: 5331-01-252-5104
FSC Code: 5331
MPN: A3190R

5331-01-539-6314 (5484-11201-777-344)

NIIN: 01-539-6314
In stock
NSN: 5331-01-539-6314
FSC Code: 5331
MPN: 548411201777344

5331-01-539-6318 (5484-11304-777-344)

NIIN: 01-539-6318
In stock
NSN: 5331-01-539-6318
FSC Code: 5331
MPN: 548411304777344

5331-01-467-5174 (801-7108407)

NIIN: 01-467-5174
In stock
NSN: 5331-01-467-5174
FSC Code: 5331
MPN: 8017108407

5331-01-408-6438 (5-471N674-70)

NIIN: 01-408-6438
In stock
NSN: 5331-01-408-6438
FSC Code: 5331
MPN: 5471N67470

5331-01-200-0450 (A-31525-6)

NIIN: 01-200-0450
In stock
NSN: 5331-01-200-0450
FSC Code: 5331
MPN: A315256

5331-01-417-8769 (54-703-113)

NIIN: 01-417-8769
In stock
NSN: 5331-01-417-8769
FSC Code: 5331
MPN: 54703113

5331-01-417-8765 (54-703-119)

NIIN: 01-417-8765
In stock
NSN: 5331-01-417-8765
FSC Code: 5331
MPN: 54703119

5331-01-418-0645 (54-700-22)

NIIN: 01-418-0645
In stock
NSN: 5331-01-418-0645
FSC Code: 5331
MPN: 5470022

5331-01-417-8756 (54-700-259)

NIIN: 01-417-8756
In stock
NSN: 5331-01-417-8756
FSC Code: 5331
MPN: 54700259

5331-01-530-9784 (54-69-8009DD0)

NIIN: 01-530-9784
In stock
NSN: 5331-01-530-9784
FSC Code: 5331
MPN: 54698009DD0

5331-01-470-7296 (54689-2)

NIIN: 01-470-7296
In stock
NSN: 5331-01-470-7296
FSC Code: 5331
MPN: 546892

5331-00-599-2083 (A312047-1)

NIIN: 00-599-2083
In stock
NSN: 5331-00-599-2083
FSC Code: 5331
MPN: A3120471

5331-00-298-6233 (A312047-12)

NIIN: 00-298-6233
In stock
NSN: 5331-00-298-6233
FSC Code: 5331
MPN: A31204712

5331-01-530-9783 (54-67-3114DD0)

NIIN: 01-530-9783
In stock
NSN: 5331-01-530-9783
FSC Code: 5331
MPN: 54673114DD0

5331-01-530-9789 (54-67-6908DD0)

NIIN: 01-530-9789
In stock
NSN: 5331-01-530-9789
FSC Code: 5331
MPN: 54676908DD0

5331-01-530-9787 (54-67-3339DD0)

NIIN: 01-530-9787
In stock
NSN: 5331-01-530-9787
FSC Code: 5331
MPN: 54673339DD0

5331-01-530-9781 (54-67-3222DD0)

NIIN: 01-530-9781
In stock
NSN: 5331-01-530-9781
FSC Code: 5331
MPN: 54673222DD0

5331-01-530-9780 (54-67-2905DD0)

NIIN: 01-530-9780
In stock
NSN: 5331-01-530-9780
FSC Code: 5331
MPN: 54672905DD0

5331-01-530-9786 (54-67-3119DD0)

NIIN: 01-530-9786
In stock
NSN: 5331-01-530-9786
FSC Code: 5331
MPN: 54673119DD0

5331-01-530-9782 (54-67-3325DD0)

NIIN: 01-530-9782
In stock
NSN: 5331-01-530-9782
FSC Code: 5331
MPN: 54673325DD0

5331-01-549-2403 (G547-0002-G7656251-0F244CP)

NIIN: 01-549-2403
In stock
NSN: 5331-01-549-2403
FSC Code: 5331
MPN: G5470002G76562510F244CP

5331-01-530-9788 (54-67-3141DD0)

NIIN: 01-530-9788
In stock
NSN: 5331-01-530-9788
FSC Code: 5331
MPN: 54673141DD0

5331-01-530-9785 (54-67-3326DD0)

NIIN: 01-530-9785
In stock
NSN: 5331-01-530-9785
FSC Code: 5331
MPN: 54673326DD0

5331-01-530-9779 (54-67-2440DD0)

NIIN: 01-530-9779
In stock
NSN: 5331-01-530-9779
FSC Code: 5331
MPN: 54672440DD0

5331-01-530-9777 (54-67-2428DD0)

NIIN: 01-530-9777
In stock
NSN: 5331-01-530-9777
FSC Code: 5331
MPN: 54672428DD0

5331-01-530-9775 (54-67-2247DD0)

NIIN: 01-530-9775
In stock
NSN: 5331-01-530-9775
FSC Code: 5331
MPN: 54672247DD0

5331-01-530-9771 (54-67-2246DD0)

NIIN: 01-530-9771
In stock
NSN: 5331-01-530-9771
FSC Code: 5331
MPN: 54672246DD0

5331-01-530-9778 (54-67-2111DD0)

NIIN: 01-530-9778
In stock
NSN: 5331-01-530-9778
FSC Code: 5331
MPN: 54672111DD0

5331-01-530-9768 (54-67-2010DD0)

NIIN: 01-530-9768
In stock
NSN: 5331-01-530-9768
FSC Code: 5331
MPN: 54672010DD0