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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.

5331-01-418-3439 (AS3209-216)

NIIN: 01-418-3439
In stock
NSN: 5331-01-418-3439
FSC Code: 5331
MPN: AS3209216

5331-01-467-5486 (AS3209-153)

NIIN: 01-467-5486
In stock
NSN: 5331-01-467-5486
FSC Code: 5331
MPN: AS3209153

5331-01-375-5905 (AS3209-142)

NIIN: 01-375-5905
In stock
NSN: 5331-01-375-5905
FSC Code: 5331
MPN: AS3209142

5331-01-463-8776 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8776
In stock
NSN: 5331-01-463-8776
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-497-4143 (AS3209-161)

NIIN: 01-497-4143
In stock
NSN: 5331-01-497-4143
FSC Code: 5331
MPN: AS3209161

5331-01-418-2321 (AS3209-176)

NIIN: 01-418-2321
In stock
NSN: 5331-01-418-2321
FSC Code: 5331
MPN: AS3209176

5331-01-497-4145 (AS3209-127)

NIIN: 01-497-4145
In stock
NSN: 5331-01-497-4145
FSC Code: 5331
MPN: AS3209127

5331-01-497-4137 (AS3209-110)

NIIN: 01-497-4137
In stock
NSN: 5331-01-497-4137
FSC Code: 5331
MPN: AS3209110

5331-01-497-4141 (AS3209-159)

NIIN: 01-497-4141
In stock
NSN: 5331-01-497-4141
FSC Code: 5331
MPN: AS3209159

5331-01-464-8546 (AS3209-148)

NIIN: 01-464-8546
In stock
NSN: 5331-01-464-8546
FSC Code: 5331
MPN: AS3209148

5331-01-463-8770 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8770
In stock
NSN: 5331-01-463-8770
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-350-3177 (MIL-R-83248/1-133CP)

NIIN: 01-350-3177
In stock
NSN: 5331-01-350-3177
FSC Code: 5331
MPN: MILR832481133CP

5331-01-497-4142 (AS3209-114)

NIIN: 01-497-4142
In stock
NSN: 5331-01-497-4142
FSC Code: 5331
MPN: AS3209114

5331-01-511-4936 (AS3209-040)

NIIN: 01-511-4936
In stock
NSN: 5331-01-511-4936
FSC Code: 5331
MPN: AS3209040

5331-01-497-4135 (AS3209-043)

NIIN: 01-497-4135
In stock
NSN: 5331-01-497-4135
FSC Code: 5331
MPN: AS3209043

5331-01-388-4528 (AS3209-128)

NIIN: 01-388-4528
In stock
NSN: 5331-01-388-4528
FSC Code: 5331
MPN: AS3209128

5331-01-399-3806 (AS3209-130)

NIIN: 01-399-3806
In stock
NSN: 5331-01-399-3806
FSC Code: 5331
MPN: AS3209130

5331-01-497-4138 (AS3209-108)

NIIN: 01-497-4138
In stock
NSN: 5331-01-497-4138
FSC Code: 5331
MPN: AS3209108

5331-01-423-6715 (M83248/1-018CP)

NIIN: 01-423-6715
In stock
NSN: 5331-01-423-6715
FSC Code: 5331
MPN: M832481018CP

5331-01-446-1960 (AS3209-029)

NIIN: 01-446-1960
In stock
NSN: 5331-01-446-1960
FSC Code: 5331
MPN: AS3209029

5331-01-497-4140 (AS3209-112)

NIIN: 01-497-4140
In stock
NSN: 5331-01-497-4140
FSC Code: 5331
MPN: AS3209112

5331-01-497-4139 (AS3209-109)

NIIN: 01-497-4139
In stock
NSN: 5331-01-497-4139
FSC Code: 5331
MPN: AS3209109

5331-01-502-7902 (AS3209-039)

NIIN: 01-502-7902
In stock
NSN: 5331-01-502-7902
FSC Code: 5331
MPN: AS3209039

5331-01-497-4134 (AS3209-019)

NIIN: 01-497-4134
In stock
NSN: 5331-01-497-4134
FSC Code: 5331
MPN: AS3209019

5331-01-463-8946 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8946
In stock
NSN: 5331-01-463-8946
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-497-4130 (AS3208-08)

NIIN: 01-497-4130
In stock
NSN: 5331-01-497-4130
FSC Code: 5331
MPN: AS320808

5331-01-396-3390 (SAE-AMS7276)

NIIN: 01-396-3390
In stock
NSN: 5331-01-396-3390
FSC Code: 5331
MPN: SAEAMS7276

5331-01-350-3175 (MIL-R-83248/1-028CP)

NIIN: 01-350-3175
In stock
NSN: 5331-01-350-3175
FSC Code: 5331
MPN: MILR832481028CP

5331-01-497-4131 (AS3209-018)

NIIN: 01-497-4131
In stock
NSN: 5331-01-497-4131
FSC Code: 5331
MPN: AS3209018

5331-01-355-2707 (MIL-R-83248/1-010CP)

NIIN: 01-355-2707
In stock
NSN: 5331-01-355-2707
FSC Code: 5331
MPN: MILR832481010CP

5331-01-379-4509 (AS3209-018)

NIIN: 01-379-4509
In stock
NSN: 5331-01-379-4509
FSC Code: 5331
MPN: AS3209018

5331-01-526-5997 (AS3209)

NIIN: 01-526-5997
In stock
NSN: 5331-01-526-5997
FSC Code: 5331
MPN: AS3209

5331-01-497-4128 (AS3209-017)

NIIN: 01-497-4128
In stock
NSN: 5331-01-497-4128
FSC Code: 5331
MPN: AS3209017

5331-01-497-4129 (AS3208-05)

NIIN: 01-497-4129
In stock
NSN: 5331-01-497-4129
FSC Code: 5331
MPN: AS320805

5331-01-463-8901 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8901
In stock
NSN: 5331-01-463-8901
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-497-4153 (AS3085-263)

NIIN: 01-497-4153
In stock
NSN: 5331-01-497-4153
FSC Code: 5331
MPN: AS3085263

5331-01-445-8705 (AS3085-254)

NIIN: 01-445-8705
In stock
NSN: 5331-01-445-8705
FSC Code: 5331
MPN: AS3085254

5331-01-463-8831 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8831
In stock
NSN: 5331-01-463-8831
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-470-1481 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-470-1481
In stock
NSN: 5331-01-470-1481
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-445-8704 (AS3085-151)

NIIN: 01-445-8704
In stock
NSN: 5331-01-445-8704
FSC Code: 5331
MPN: AS3085151

5331-01-477-3050 (AS3085-238)

NIIN: 01-477-3050
In stock
NSN: 5331-01-477-3050
FSC Code: 5331
MPN: AS3085238

5331-01-497-4150 (AS3085-214)

NIIN: 01-497-4150
In stock
NSN: 5331-01-497-4150
FSC Code: 5331
MPN: AS3085214

5331-01-497-4151 (AS3085-238)

NIIN: 01-497-4151
In stock
NSN: 5331-01-497-4151
FSC Code: 5331
MPN: AS3085238

5331-01-407-7753 (AS3085-274)

NIIN: 01-407-7753
In stock
NSN: 5331-01-407-7753
FSC Code: 5331
MPN: AS3085274

5331-01-463-8683 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8683
In stock
NSN: 5331-01-463-8683
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-497-4149 (M83248/1-220)

NIIN: 01-497-4149
In stock
NSN: 5331-01-497-4149
FSC Code: 5331
MPN: M832481220

5331-01-463-8620 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8620
In stock
NSN: 5331-01-463-8620
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE

5331-01-463-8684 (SPECIFIC V-22 AE1107C ENGINE NSNSPECIFICV22AE1107CENGINE)

NIIN: 01-463-8684
In stock
NSN: 5331-01-463-8684
FSC Code: 5331
MPN: SPECIFICV22AE1107CENGINENSNSPECIFICV22AE1107CENGINE