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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.

5331-00-414-4628 (610ARB3)

NIIN: 00-414-4628
In stock
NSN: 5331-00-414-4628
FSC Code: 5331
MPN: 610ARB3

5331-01-250-1382 (6-10-86-RB)

NIIN: 01-250-1382
In stock
NSN: 5331-01-250-1382
FSC Code: 5331
MPN: 61086RB

5331-01-552-0610 (239-8513)

NIIN: 01-552-0610
In stock
NSN: 5331-01-552-0610
FSC Code: 5331
MPN: 2398513

5331-00-065-4975 (610411C1)

NIIN: 00-065-4975
In stock
NSN: 5331-00-065-4975
FSC Code: 5331
MPN: 610411C1

5331-00-824-6183 (610271C1)

NIIN: 00-824-6183
In stock
NSN: 5331-00-824-6183
FSC Code: 5331
MPN: 610271C1

5331-01-526-8901 (2-39-47-071)

NIIN: 01-526-8901
In stock
NSN: 5331-01-526-8901
FSC Code: 5331
MPN: 23947071

5331-01-534-2322 (2-393-C944-70)

NIIN: 01-534-2322
In stock
NSN: 5331-01-534-2322
FSC Code: 5331
MPN: 2393C94470

5331-01-134-0131 (6102-6)

NIIN: 01-134-0131
In stock
NSN: 5331-01-134-0131
FSC Code: 5331
MPN: 61026

5331-01-374-3472 (MIL-R-83248/2)

NIIN: 01-374-3472
In stock
NSN: 5331-01-374-3472
FSC Code: 5331
MPN: MILR832482

5331-01-569-6078 (239-2402)

NIIN: 01-569-6078
In stock
NSN: 5331-01-569-6078
FSC Code: 5331
MPN: 2392402

5331-01-352-8473 (2-390E540-80)

NIIN: 01-352-8473
In stock
NSN: 5331-01-352-8473
FSC Code: 5331
MPN: 2390E54080

5331-01-496-7938 (26-385-501PC385-563)

NIIN: 01-496-7938
In stock
NSN: 5331-01-496-7938
FSC Code: 5331
MPN: 26385501PC385563

5331-01-460-1063 (BU00.102.0236)

NIIN: 01-460-1063
In stock
NSN: 5331-01-460-1063
FSC Code: 5331
MPN: BU001020236

5331-01-134-0133 (6102-17)

NIIN: 01-134-0133
In stock
NSN: 5331-01-134-0133
FSC Code: 5331
MPN: 610217

5331-01-134-0132 (6102-15)

NIIN: 01-134-0132
In stock
NSN: 5331-01-134-0132
FSC Code: 5331
MPN: 610215

5331-01-477-8870 (ARP568-011EP70)

NIIN: 01-477-8870
In stock
NSN: 5331-01-477-8870
FSC Code: 5331
MPN: ARP568011EP70

5331-01-477-8871 (ARP568-160EP70)

NIIN: 01-477-8871
In stock
NSN: 5331-01-477-8871
FSC Code: 5331
MPN: ARP568160EP70

5331-01-496-7926 (26-385-501PC385-562)

NIIN: 01-496-7926
In stock
NSN: 5331-01-496-7926
FSC Code: 5331
MPN: 26385501PC385562

5331-01-501-7201 (238-7115)

NIIN: 01-501-7201
In stock
NSN: 5331-01-501-7201
FSC Code: 5331
MPN: 2387115

5331-01-426-0843 (238-6024)

NIIN: 01-426-0843
In stock
NSN: 5331-01-426-0843
FSC Code: 5331
MPN: 2386024

5331-01-349-4864 (238-6011)

NIIN: 01-349-4864
In stock
NSN: 5331-01-349-4864
FSC Code: 5331
MPN: 2386011

5331-01-349-4865 (238-6012)

NIIN: 01-349-4865
In stock
NSN: 5331-01-349-4865
FSC Code: 5331
MPN: 2386012

5331-01-431-8590 (238-6225)

NIIN: 01-431-8590
In stock
NSN: 5331-01-431-8590
FSC Code: 5331
MPN: 2386225

5331-01-501-7237 (238-6219)

NIIN: 01-501-7237
In stock
NSN: 5331-01-501-7237
FSC Code: 5331
MPN: 2386219

5331-01-547-4421 (238-6121)

NIIN: 01-547-4421
In stock
NSN: 5331-01-547-4421
FSC Code: 5331
MPN: 2386121

5331-01-491-9296 (6508E50FN195)

NIIN: 01-491-9296
In stock
NSN: 5331-01-491-9296
FSC Code: 5331
MPN: 6508E50FN195

5331-01-496-7917 (26-385-501PC385-561)

NIIN: 01-496-7917
In stock
NSN: 5331-01-496-7917
FSC Code: 5331
MPN: 26385501PC385561

5331-01-559-5868 (238542-0004)

NIIN: 01-559-5868
In stock
NSN: 5331-01-559-5868
FSC Code: 5331
MPN: 2385420004

5331-01-385-4997 (2385RS420-18)

NIIN: 01-385-4997
In stock
NSN: 5331-01-385-4997
FSC Code: 5331
MPN: 2385RS42018

5331-01-493-7500 (238-5267)

NIIN: 01-493-7500
In stock
NSN: 5331-01-493-7500
FSC Code: 5331
MPN: 2385267

5331-01-546-9761 (238-5270)

NIIN: 01-546-9761
In stock
NSN: 5331-01-546-9761
FSC Code: 5331
MPN: 2385270

5331-01-341-2132 (238-5240)

NIIN: 01-341-2132
In stock
NSN: 5331-01-341-2132
FSC Code: 5331
MPN: 2385240

5331-01-501-7200 (238-5356)

NIIN: 01-501-7200
In stock
NSN: 5331-01-501-7200
FSC Code: 5331
MPN: 2385356

5331-01-351-6301 (238-5239)

NIIN: 01-351-6301
In stock
NSN: 5331-01-351-6301
FSC Code: 5331
MPN: 2385239

5331-01-567-3029 (238-5443)

NIIN: 01-567-3029
In stock
NSN: 5331-01-567-3029
FSC Code: 5331
MPN: 2385443

5331-01-426-0842 (238-5237)

NIIN: 01-426-0842
In stock
NSN: 5331-01-426-0842
FSC Code: 5331
MPN: 2385237

5331-01-426-0828 (238-5228)

NIIN: 01-426-0828
In stock
NSN: 5331-01-426-0828
FSC Code: 5331
MPN: 2385228

5331-01-473-3526 (238-5239)

NIIN: 01-473-3526
In stock
NSN: 5331-01-473-3526
FSC Code: 5331
MPN: 2385239

5331-01-341-2130 (238-5238)

NIIN: 01-341-2130
In stock
NSN: 5331-01-341-2130
FSC Code: 5331
MPN: 2385238

5331-01-341-2131 (238-5262)

NIIN: 01-341-2131
In stock
NSN: 5331-01-341-2131
FSC Code: 5331
MPN: 2385262

5331-01-350-0462 (238-5212)

NIIN: 01-350-0462
In stock
NSN: 5331-01-350-0462
FSC Code: 5331
MPN: 2385212

5331-01-539-4665 (238-5223)

NIIN: 01-539-4665
In stock
NSN: 5331-01-539-4665
FSC Code: 5331
MPN: 2385223

5331-01-425-5726 (238-5126)

NIIN: 01-425-5726
In stock
NSN: 5331-01-425-5726
FSC Code: 5331
MPN: 2385126

5331-01-349-4867 (238-5011)

NIIN: 01-349-4867
In stock
NSN: 5331-01-349-4867
FSC Code: 5331
MPN: 2385011

5331-01-501-7236 (238-5005)

NIIN: 01-501-7236
In stock
NSN: 5331-01-501-7236
FSC Code: 5331
MPN: 2385005

5331-01-349-4866 (238-5021)

NIIN: 01-349-4866
In stock
NSN: 5331-01-349-4866
FSC Code: 5331
MPN: 2385021

5331-01-497-5949 (SAE-AS83461/1)

NIIN: 01-497-5949
In stock
NSN: 5331-01-497-5949
FSC Code: 5331
MPN: SAEAS834611

5331-01-496-7914 (26-385-501PC385-560)

NIIN: 01-496-7914
In stock
NSN: 5331-01-496-7914
FSC Code: 5331
MPN: 26385501PC385560