Skip to content

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.

5331-01-017-6536 (231-7509)

NIIN: 01-017-6536
In stock
NSN: 5331-01-017-6536
FSC Code: 5331
MPN: 2317509

5331-14-390-8241 (00620C0000A24B7)

NIIN: 14-390-8241
In stock
NSN: 5331-14-390-8241
FSC Code: 5331
MPN: 00620C0000A24B7

5331-01-006-0304 (2-317-V884-75)

NIIN: 01-006-0304
In stock
NSN: 5331-01-006-0304
FSC Code: 5331
MPN: 2317V88475

5331-00-247-5972 (2-318N951-75)

NIIN: 00-247-5972
In stock
NSN: 5331-00-247-5972
FSC Code: 5331
MPN: 2318N95175

5331-01-006-0305 (2-318V0747-75)

NIIN: 01-006-0305
In stock
NSN: 5331-01-006-0305
FSC Code: 5331
MPN: 2318V074775

5331-01-053-7016 (2-319)

NIIN: 01-053-7016
In stock
NSN: 5331-01-053-7016
FSC Code: 5331
MPN: 2319

5331-01-006-0307 (2-319)

NIIN: 01-006-0307
In stock
NSN: 5331-01-006-0307
FSC Code: 5331
MPN: 2319

5331-01-450-2112 (25147-01J)

NIIN: 01-450-2112
In stock
NSN: 5331-01-450-2112
FSC Code: 5331
MPN: 2514701J

5331-14-365-2747 (00640B9000A31B5)

NIIN: 14-365-2747
In stock
NSN: 5331-14-365-2747
FSC Code: 5331
MPN: 00640B9000A31B5

5331-01-454-4067 (00641B)

NIIN: 01-454-4067
In stock
NSN: 5331-01-454-4067
FSC Code: 5331
MPN: 00641B

5331-14-292-9092 (00640B901A4U20B8)

NIIN: 14-292-9092
In stock
NSN: 5331-14-292-9092
FSC Code: 5331
MPN: 00640B901A4U20B8

5331-01-555-0195 (00643A449-20)

NIIN: 01-555-0195
In stock
NSN: 5331-01-555-0195
FSC Code: 5331
MPN: 00643A44920

5331-01-512-7329 (0065221.35.68)

NIIN: 01-512-7329
In stock
NSN: 5331-01-512-7329
FSC Code: 5331
MPN: 00652213568

5331-01-521-0352 (00-6520)

NIIN: 01-521-0352
In stock
NSN: 5331-01-521-0352
FSC Code: 5331
MPN: 006520

5331-01-530-7449 (0065252.53.69)

NIIN: 01-530-7449
In stock
NSN: 5331-01-530-7449
FSC Code: 5331
MPN: 00652525369

5331-01-512-7348 (0065226.35.63)

NIIN: 01-512-7348
In stock
NSN: 5331-01-512-7348
FSC Code: 5331
MPN: 00652263563

5331-14-330-1583 (WA699G20257DC4A)

NIIN: 14-330-1583
In stock
NSN: 5331-14-330-1583
FSC Code: 5331
MPN: WA699G20257DC4A

5331-14-367-8630 (WA533G10732DC4A)

NIIN: 14-367-8630
In stock
NSN: 5331-14-367-8630
FSC Code: 5331
MPN: WA533G10732DC4A

5331-01-548-0024 (S9233-XX-MMA-010/LCS)

NIIN: 01-548-0024
In stock
NSN: 5331-01-548-0024
FSC Code: 5331
MPN: S9233XXMMA010LCS

5331-14-326-1120 (WA533G07239DC4A)

NIIN: 14-326-1120
In stock
NSN: 5331-14-326-1120
FSC Code: 5331
MPN: WA533G07239DC4A

5331-12-143-6884 (23176-271000.01.0)

NIIN: 12-143-6884
In stock
NSN: 5331-12-143-6884
FSC Code: 5331
MPN: 23176271000010

5331-01-468-2978 (00704-0826-0001)

NIIN: 01-468-2978
In stock
NSN: 5331-01-468-2978
FSC Code: 5331
MPN: 0070408260001

5331-01-527-4379 (00704-0759-0001)

NIIN: 01-527-4379
In stock
NSN: 5331-01-527-4379
FSC Code: 5331
MPN: 0070407590001

5331-01-480-7180 (00704-0826-0002)

NIIN: 01-480-7180
In stock
NSN: 5331-01-480-7180
FSC Code: 5331
MPN: 0070408260002

5331-01-542-0789 (00707A)

NIIN: 01-542-0789
In stock
NSN: 5331-01-542-0789
FSC Code: 5331
MPN: 00707A

5331-01-225-6344 (2-320-N674-70)

NIIN: 01-225-6344
In stock
NSN: 5331-01-225-6344
FSC Code: 5331
MPN: 2320N67470

5331-01-437-0435 (ZUS.4WRZ16.-51)

NIIN: 01-437-0435
In stock
NSN: 5331-01-437-0435
FSC Code: 5331
MPN: ZUS4WRZ1651

5331-01-006-0308 (2-320V0747-75)

NIIN: 01-006-0308
In stock
NSN: 5331-01-006-0308
FSC Code: 5331
MPN: 2320V074775

5331-00-590-1064 (2-320N951-75)

NIIN: 00-590-1064
In stock
NSN: 5331-00-590-1064
FSC Code: 5331
MPN: 2320N95175

5331-01-544-8792 (00713J)

NIIN: 01-544-8792
In stock
NSN: 5331-01-544-8792
FSC Code: 5331
MPN: 00713J

5331-01-439-0348 (00714G)

NIIN: 01-439-0348
In stock
NSN: 5331-01-439-0348
FSC Code: 5331
MPN: 00714G

5331-01-450-6146 (00720D)

NIIN: 01-450-6146
In stock
NSN: 5331-01-450-6146
FSC Code: 5331
MPN: 00720D

5331-14-356-0987 (00720B9000A31B6)

NIIN: 14-356-0987
In stock
NSN: 5331-14-356-0987
FSC Code: 5331
MPN: 00720B9000A31B6

5331-14-292-9106 (00720B9000A60C7)

NIIN: 14-292-9106
In stock
NSN: 5331-14-292-9106
FSC Code: 5331
MPN: 00720B9000A60C7

5331-01-112-2290 (2321326-1)

NIIN: 01-112-2290
In stock
NSN: 5331-01-112-2290
FSC Code: 5331
MPN: 23213261

5331-01-542-0740 (00737H)

NIIN: 01-542-0740
In stock
NSN: 5331-01-542-0740
FSC Code: 5331
MPN: 00737H

5331-01-006-0306 (2-321-V884075)

NIIN: 01-006-0306
In stock
NSN: 5331-01-006-0306
FSC Code: 5331
MPN: 2321V884075

5331-01-544-8816 (00751J)

NIIN: 01-544-8816
In stock
NSN: 5331-01-544-8816
FSC Code: 5331
MPN: 00751J

5331-01-544-8780 (00750A)

NIIN: 01-544-8780
In stock
NSN: 5331-01-544-8780
FSC Code: 5331
MPN: 00750A

5331-01-183-5652 (232290-010)

NIIN: 01-183-5652
In stock
NSN: 5331-01-183-5652
FSC Code: 5331
MPN: 232290010

5331-00-853-6751 (232-29146)

NIIN: 00-853-6751
In stock
NSN: 5331-00-853-6751
FSC Code: 5331
MPN: 23229146

5331-01-067-3448 (2-323)

NIIN: 01-067-3448
In stock
NSN: 5331-01-067-3448
FSC Code: 5331
MPN: 2323

5331-01-219-0459 (2-322N525-60)

NIIN: 01-219-0459
In stock
NSN: 5331-01-219-0459
FSC Code: 5331
MPN: 2322N52560

5331-01-367-6349 (00785G)

NIIN: 01-367-6349
In stock
NSN: 5331-01-367-6349
FSC Code: 5331
MPN: 00785G

5331-01-542-0775 (00787C)

NIIN: 01-542-0775
In stock
NSN: 5331-01-542-0775
FSC Code: 5331
MPN: 00787C

5331-01-006-0303 (2-322V0747-75)

NIIN: 01-006-0303
In stock
NSN: 5331-01-006-0303
FSC Code: 5331
MPN: 2322V074775

5331-01-552-5112 (00800D)

NIIN: 01-552-5112
In stock
NSN: 5331-01-552-5112
FSC Code: 5331
MPN: 00800D

5331-14-301-5971 (00800X190PB701A-F89)

NIIN: 14-301-5971
In stock
NSN: 5331-14-301-5971
FSC Code: 5331
MPN: 00800X190PB701AF89