Skip to content
News Industries Part Directory Excess Inventory Management Solutions Sitemap

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.

5331-01-138-0788 (MBEU-65959)

NIIN: 01-138-0788
In stock
NSN: 5331-01-138-0788
FSC Code: 5331
MPN: MBEU65959

5331-00-136-2599 (MBEU35487)

NIIN: 00-136-2599
In stock
NSN: 5331-00-136-2599
FSC Code: 5331
MPN: MBEU35487

5331-01-493-3650 (905-0912.9)

NIIN: 01-493-3650
In stock
NSN: 5331-01-493-3650
FSC Code: 5331
MPN: 90509129

5331-00-064-3513 (MBEU18605)

NIIN: 00-064-3513
In stock
NSN: 5331-00-064-3513
FSC Code: 5331
MPN: MBEU18605

5331-00-064-3514 (MBEU18209)

NIIN: 00-064-3514
In stock
NSN: 5331-00-064-3514
FSC Code: 5331
MPN: MBEU18209

5331-01-440-2197 (9049-60A)

NIIN: 01-440-2197
In stock
NSN: 5331-01-440-2197
FSC Code: 5331
MPN: 904960A

5331-01-470-2814 (9-049-110018)

NIIN: 01-470-2814
In stock
NSN: 5331-01-470-2814
FSC Code: 5331
MPN: 9049110018

5331-01-470-2808 (9-049-109966)

NIIN: 01-470-2808
In stock
NSN: 5331-01-470-2808
FSC Code: 5331
MPN: 9049109966

5331-01-124-7724 (MBEU)

NIIN: 01-124-7724
In stock
NSN: 5331-01-124-7724
FSC Code: 5331
MPN: MBEU

5331-01-470-2812 (9-049-109985)

NIIN: 01-470-2812
In stock
NSN: 5331-01-470-2812
FSC Code: 5331
MPN: 9049109985

5331-01-470-2816 (9-049-110030)

NIIN: 01-470-2816
In stock
NSN: 5331-01-470-2816
FSC Code: 5331
MPN: 9049110030

5331-01-470-2806 (9-049-109949)

NIIN: 01-470-2806
In stock
NSN: 5331-01-470-2806
FSC Code: 5331
MPN: 9049109949

5331-01-470-2799 (9-049-1099925)

NIIN: 01-470-2799
In stock
NSN: 5331-01-470-2799
FSC Code: 5331
MPN: 90491099925

5331-01-470-2803 (9-049-109943)

NIIN: 01-470-2803
In stock
NSN: 5331-01-470-2803
FSC Code: 5331
MPN: 9049109943

5331-01-470-2810 (9-049-109972)

NIIN: 01-470-2810
In stock
NSN: 5331-01-470-2810
FSC Code: 5331
MPN: 9049109972

5331-01-470-2795 (9-049-109924)

NIIN: 01-470-2795
In stock
NSN: 5331-01-470-2795
FSC Code: 5331
MPN: 9049109924

5331-00-527-7318 (MB4424)

NIIN: 00-527-7318
In stock
NSN: 5331-00-527-7318
FSC Code: 5331
MPN: MB4424

5331-01-543-7208 (904/50041)

NIIN: 01-543-7208
In stock
NSN: 5331-01-543-7208
FSC Code: 5331
MPN: 90450041

5331-00-678-6961 (MB1-5823)

NIIN: 00-678-6961
In stock
NSN: 5331-00-678-6961
FSC Code: 5331
MPN: MB15823

5331-01-387-9150 (90-3847-00)

NIIN: 01-387-9150
In stock
NSN: 5331-01-387-9150
FSC Code: 5331
MPN: 90384700

5331-01-277-4221 (MB179324)

NIIN: 01-277-4221
In stock
NSN: 5331-01-277-4221
FSC Code: 5331
MPN: MB179324

5331-00-410-3454 (MB-135-K9)

NIIN: 00-410-3454
In stock
NSN: 5331-00-410-3454
FSC Code: 5331
MPN: MB135K9

5331-01-537-7206 (AS-568A-367-70EP)

NIIN: 01-537-7206
In stock
NSN: 5331-01-537-7206
FSC Code: 5331
MPN: AS568A36770EP

5331-01-525-8078 (AS-568B-033-70EP)

NIIN: 01-525-8078
In stock
NSN: 5331-01-525-8078
FSC Code: 5331
MPN: AS568B03370EP

5331-01-525-8074 (AS-568B-348-70EP)

NIIN: 01-525-8074
In stock
NSN: 5331-01-525-8074
FSC Code: 5331
MPN: AS568B34870EP

5331-01-531-3117 (G-4541-B-010)

NIIN: 01-531-3117
In stock
NSN: 5331-01-531-3117
FSC Code: 5331
MPN: G4541B010

5331-01-146-5529 (MAT89079-1)

NIIN: 01-146-5529
In stock
NSN: 5331-01-146-5529
FSC Code: 5331
MPN: MAT890791

5331-01-433-6131 (P003-941217)

NIIN: 01-433-6131
In stock
NSN: 5331-01-433-6131
FSC Code: 5331
MPN: P003941217

5331-22-269-0070 (90302-28-1045)

NIIN: 22-269-0070
In stock
NSN: 5331-22-269-0070
FSC Code: 5331
MPN: 90302281045

5331-22-269-0063 (90301-24-3767)

NIIN: 22-269-0063
In stock
NSN: 5331-22-269-0063
FSC Code: 5331
MPN: 90301243767

5331-01-433-7417 (9030-3.34)

NIIN: 01-433-7417
In stock
NSN: 5331-01-433-7417
FSC Code: 5331
MPN: 9030334

5331-01-433-6130 (P003-941216)

NIIN: 01-433-6130
In stock
NSN: 5331-01-433-6130
FSC Code: 5331
MPN: P003941216

5331-22-269-0066 (90301-24-5814)

NIIN: 22-269-0066
In stock
NSN: 5331-22-269-0066
FSC Code: 5331
MPN: 90301245814

5331-22-269-0065 (90301-24-4746)

NIIN: 22-269-0065
In stock
NSN: 5331-22-269-0065
FSC Code: 5331
MPN: 90301244746

5331-22-269-0068 (90302-28-0155)

NIIN: 22-269-0068
In stock
NSN: 5331-22-269-0068
FSC Code: 5331
MPN: 90302280155

5331-22-269-0060 (90301-24-2877)

NIIN: 22-269-0060
In stock
NSN: 5331-22-269-0060
FSC Code: 5331
MPN: 90301242877

5331-01-421-1889 (90300-15)

NIIN: 01-421-1889
In stock
NSN: 5331-01-421-1889
FSC Code: 5331
MPN: 9030015

5331-01-440-2199 (9027-58A)

NIIN: 01-440-2199
In stock
NSN: 5331-01-440-2199
FSC Code: 5331
MPN: 902758A

5331-01-391-7856 (90260-001)

NIIN: 01-391-7856
In stock
NSN: 5331-01-391-7856
FSC Code: 5331
MPN: 90260001

5331-01-406-2193 (902277-19)

NIIN: 01-406-2193
In stock
NSN: 5331-01-406-2193
FSC Code: 5331
MPN: 90227719

5331-01-352-7479 (902-23)

NIIN: 01-352-7479
In stock
NSN: 5331-01-352-7479
FSC Code: 5331
MPN: 90223

5331-22-269-0052 (90205-53-0480)

NIIN: 22-269-0052
In stock
NSN: 5331-22-269-0052
FSC Code: 5331
MPN: 90205530480

5331-01-376-0554 (902-02-107)

NIIN: 01-376-0554
In stock
NSN: 5331-01-376-0554
FSC Code: 5331
MPN: 90202107

5331-22-269-0046 (90201-23-0860)

NIIN: 22-269-0046
In stock
NSN: 5331-22-269-0046
FSC Code: 5331
MPN: 90201230860

5331-01-372-8226 (902-00-703)

NIIN: 01-372-8226
In stock
NSN: 5331-01-372-8226
FSC Code: 5331
MPN: 90200703

5331-01-372-8227 (902-00-515)

NIIN: 01-372-8227
In stock
NSN: 5331-01-372-8227
FSC Code: 5331
MPN: 90200515

5331-01-372-3016 (902-00-705)

NIIN: 01-372-3016
In stock
NSN: 5331-01-372-3016
FSC Code: 5331
MPN: 90200705

5331-01-376-0686 (902-00-715)

NIIN: 01-376-0686
In stock
NSN: 5331-01-376-0686
FSC Code: 5331
MPN: 90200715