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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.

5331-01-561-1019 (25-010)

NIIN: 01-561-1019
In stock
NSN: 5331-01-561-1019
FSC Code: 5331
MPN: 25010

5331-01-463-3915 (25009-08)

NIIN: 01-463-3915
In stock
NSN: 5331-01-463-3915
FSC Code: 5331
MPN: 2500908

5331-01-561-1018 (25-008)

NIIN: 01-561-1018
In stock
NSN: 5331-01-561-1018
FSC Code: 5331
MPN: 25008

5331-00-008-5961 (6230-8TEFL0N)

NIIN: 00-008-5961
In stock
NSN: 5331-00-008-5961
FSC Code: 5331
MPN: 62308TEFL0N

5331-00-364-9434 (6230-6)

NIIN: 00-364-9434
In stock
NSN: 5331-00-364-9434
FSC Code: 5331
MPN: 62306

5331-01-236-6939 (62308-30)

NIIN: 01-236-6939
In stock
NSN: 5331-01-236-6939
FSC Code: 5331
MPN: 6230830

5331-01-350-4374 (25003-PC4)

NIIN: 01-350-4374
In stock
NSN: 5331-01-350-4374
FSC Code: 5331
MPN: 25003PC4

5331-00-003-4139 (62307-14)

NIIN: 00-003-4139
In stock
NSN: 5331-00-003-4139
FSC Code: 5331
MPN: 6230714

5331-01-350-4375 (25003-PC6)

NIIN: 01-350-4375
In stock
NSN: 5331-01-350-4375
FSC Code: 5331
MPN: 25003PC6

5331-00-230-5225 (6230-4)

NIIN: 00-230-5225
In stock
NSN: 5331-00-230-5225
FSC Code: 5331
MPN: 62304

5331-01-276-6654 (6230-5)

NIIN: 01-276-6654
In stock
NSN: 5331-01-276-6654
FSC Code: 5331
MPN: 62305

5331-00-877-6721 (623030B46A)

NIIN: 00-877-6721
In stock
NSN: 5331-00-877-6721
FSC Code: 5331
MPN: 623030B46A

5331-01-551-6229 (250-029201)

NIIN: 01-551-6229
In stock
NSN: 5331-01-551-6229
FSC Code: 5331
MPN: 250029201

5331-01-078-0850 (6230-3)

NIIN: 01-078-0850
In stock
NSN: 5331-01-078-0850
FSC Code: 5331
MPN: 62303

5331-00-753-2205 (6230-25)

NIIN: 00-753-2205
In stock
NSN: 5331-00-753-2205
FSC Code: 5331
MPN: 623025

5331-01-332-1450 (6230-28)

NIIN: 01-332-1450
In stock
NSN: 5331-01-332-1450
FSC Code: 5331
MPN: 623028

5331-00-224-0974 (623018B3)

NIIN: 00-224-0974
In stock
NSN: 5331-00-224-0974
FSC Code: 5331
MPN: 623018B3

5331-00-618-2064 (623018B35)

NIIN: 00-618-2064
In stock
NSN: 5331-00-618-2064
FSC Code: 5331
MPN: 623018B35

5331-01-276-0768 (6230-18)

NIIN: 01-276-0768
In stock
NSN: 5331-01-276-0768
FSC Code: 5331
MPN: 623018

5331-01-113-9672 (6230-09)

NIIN: 01-113-9672
In stock
NSN: 5331-01-113-9672
FSC Code: 5331
MPN: 623009

5331-00-979-6425 (6230-18)

NIIN: 00-979-6425
In stock
NSN: 5331-00-979-6425
FSC Code: 5331
MPN: 623018

5331-01-026-3168 (6230-13)

NIIN: 01-026-3168
In stock
NSN: 5331-01-026-3168
FSC Code: 5331
MPN: 623013

5331-00-599-3143 (623008B4)

NIIN: 00-599-3143
In stock
NSN: 5331-00-599-3143
FSC Code: 5331
MPN: 623008B4

5331-01-463-6580 (250-002650-064)

NIIN: 01-463-6580
In stock
NSN: 5331-01-463-6580
FSC Code: 5331
MPN: 250002650064

5331-01-416-9532 (25000-26)

NIIN: 01-416-9532
In stock
NSN: 5331-01-416-9532
FSC Code: 5331
MPN: 2500026

5331-01-368-3702 (250-001-014)

NIIN: 01-368-3702
In stock
NSN: 5331-01-368-3702
FSC Code: 5331
MPN: 250001014

5331-00-292-7243 (6227-9S32)

NIIN: 00-292-7243
In stock
NSN: 5331-00-292-7243
FSC Code: 5331
MPN: 62279S32

5331-01-368-6111 (250-001-119)

NIIN: 01-368-6111
In stock
NSN: 5331-01-368-6111
FSC Code: 5331
MPN: 250001119

5331-00-641-1821 (6227-78)

NIIN: 00-641-1821
In stock
NSN: 5331-00-641-1821
FSC Code: 5331
MPN: 622778

5331-01-039-9757 (6227-88)

NIIN: 01-039-9757
In stock
NSN: 5331-01-039-9757
FSC Code: 5331
MPN: 622788

5331-01-203-2990 (6227-81)

NIIN: 01-203-2990
In stock
NSN: 5331-01-203-2990
FSC Code: 5331
MPN: 622781

5331-01-463-6575 (250-000270-064)

NIIN: 01-463-6575
In stock
NSN: 5331-01-463-6575
FSC Code: 5331
MPN: 250000270064

5331-01-463-6579 (250-000310-064)

NIIN: 01-463-6579
In stock
NSN: 5331-01-463-6579
FSC Code: 5331
MPN: 250000310064

5331-01-525-2768 (250-00038-01)

NIIN: 01-525-2768
In stock
NSN: 5331-01-525-2768
FSC Code: 5331
MPN: 2500003801

5331-00-292-7245 (6227-6S32)

NIIN: 00-292-7245
In stock
NSN: 5331-00-292-7245
FSC Code: 5331
MPN: 62276S32

5331-01-464-3689 (250-000260-064)

NIIN: 01-464-3689
In stock
NSN: 5331-01-464-3689
FSC Code: 5331
MPN: 250000260064

5331-01-463-6577 (250-000250-064)

NIIN: 01-463-6577
In stock
NSN: 5331-01-463-6577
FSC Code: 5331
MPN: 250000250064

5331-00-816-3701 (6227-7)

NIIN: 00-816-3701
In stock
NSN: 5331-00-816-3701
FSC Code: 5331
MPN: 62277

5331-01-463-6582 (250-000230-064)

NIIN: 01-463-6582
In stock
NSN: 5331-01-463-6582
FSC Code: 5331
MPN: 250000230064

5331-01-564-2171 (250-00028AS-CP2)

NIIN: 01-564-2171
In stock
NSN: 5331-01-564-2171
FSC Code: 5331
MPN: 25000028ASCP2

5331-00-514-6115 (6227-47)

NIIN: 00-514-6115
In stock
NSN: 5331-00-514-6115
FSC Code: 5331
MPN: 622747

5331-01-545-0210 (250-00008-01)

NIIN: 01-545-0210
In stock
NSN: 5331-01-545-0210
FSC Code: 5331
MPN: 2500000801

5331-01-525-2035 (250-00005-01)

NIIN: 01-525-2035
In stock
NSN: 5331-01-525-2035
FSC Code: 5331
MPN: 2500000501

5331-01-525-2064 (250-00009-01)

NIIN: 01-525-2064
In stock
NSN: 5331-01-525-2064
FSC Code: 5331
MPN: 2500000901

5331-00-409-4337 (6227-41)

NIIN: 00-409-4337
In stock
NSN: 5331-00-409-4337
FSC Code: 5331
MPN: 622741

5331-01-072-9193 (6227-42)

NIIN: 01-072-9193
In stock
NSN: 5331-01-072-9193
FSC Code: 5331
MPN: 622742

5331-12-314-3483 (700429024000)

NIIN: 12-314-3483
In stock
NSN: 5331-12-314-3483
FSC Code: 5331
MPN: 700429024000

5331-01-276-6655 (6227-25)

NIIN: 01-276-6655
In stock
NSN: 5331-01-276-6655
FSC Code: 5331
MPN: 622725