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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.

5331-00-405-6027 (2-359)

NIIN: 00-405-6027
In stock
NSN: 5331-00-405-6027
FSC Code: 5331
MPN: 2359

5331-00-435-0431 (2-359)

NIIN: 00-435-0431
In stock
NSN: 5331-00-435-0431
FSC Code: 5331
MPN: 2359

5331-01-380-8268 (0-1106/ES-0008-#18)

NIIN: 01-380-8268
In stock
NSN: 5331-01-380-8268
FSC Code: 5331
MPN: 01106ES000818

5331-01-009-6732 (2-359V0747-75)

NIIN: 01-009-6732
In stock
NSN: 5331-01-009-6732
FSC Code: 5331
MPN: 2359V074775

5331-01-532-5833 (G547-0002-PLC11401-009D4)

NIIN: 01-532-5833
In stock
NSN: 5331-01-532-5833
FSC Code: 5331
MPN: G5470002PLC11401009D4

5331-01-517-9538 (01-1200-52)

NIIN: 01-517-9538
In stock
NSN: 5331-01-517-9538
FSC Code: 5331
MPN: 01120052

5331-01-434-6981 (2-011C1185-70)

NIIN: 01-434-6981
In stock
NSN: 5331-01-434-6981
FSC Code: 5331
MPN: 2011C118570

5331-01-506-4748 (0-1-1-28)

NIIN: 01-506-4748
In stock
NSN: 5331-01-506-4748
FSC Code: 5331
MPN: 01128

5331-01-542-0736 (01127A)

NIIN: 01-542-0736
In stock
NSN: 5331-01-542-0736
FSC Code: 5331
MPN: 01127A

5331-01-450-2520 (01-1300-59-500)

NIIN: 01-450-2520
In stock
NSN: 5331-01-450-2520
FSC Code: 5331
MPN: 01130059500

5331-01-517-9539 (01-1300-52)

NIIN: 01-517-9539
In stock
NSN: 5331-01-517-9539
FSC Code: 5331
MPN: 01130052

5331-01-542-0786 (01131A)

NIIN: 01-542-0786
In stock
NSN: 5331-01-542-0786
FSC Code: 5331
MPN: 01131A

5331-12-346-9999 (316 248 0634316248)

NIIN: 12-346-9999
In stock
NSN: 5331-12-346-9999
FSC Code: 5331
MPN: 3162480634316248

5331-01-287-8818 (235-V14A)

NIIN: 01-287-8818
In stock
NSN: 5331-01-287-8818
FSC Code: 5331
MPN: 235V14A

5331-01-452-3259 (011-50-1100)

NIIN: 01-452-3259
In stock
NSN: 5331-01-452-3259
FSC Code: 5331
MPN: 011501100

5331-01-542-0783 (01152J)

NIIN: 01-542-0783
In stock
NSN: 5331-01-542-0783
FSC Code: 5331
MPN: 01152J

5331-01-426-1722 (01151-0035-0002)

NIIN: 01-426-1722
In stock
NSN: 5331-01-426-1722
FSC Code: 5331
MPN: 0115100350002

5331-01-452-3244 (011-50-0046)

NIIN: 01-452-3244
In stock
NSN: 5331-01-452-3244
FSC Code: 5331
MPN: 011500046

5331-01-548-6940 (01153G)

NIIN: 01-548-6940
In stock
NSN: 5331-01-548-6940
FSC Code: 5331
MPN: 01153G

5331-01-452-3257 (011-50-0046)

NIIN: 01-452-3257
In stock
NSN: 5331-01-452-3257
FSC Code: 5331
MPN: 011500046

5331-01-542-0746 (01154E)

NIIN: 01-542-0746
In stock
NSN: 5331-01-542-0746
FSC Code: 5331
MPN: 01154E

5331-01-426-1732 (01151-0034-0002)

NIIN: 01-426-1732
In stock
NSN: 5331-01-426-1732
FSC Code: 5331
MPN: 0115100340002

5331-01-432-6224 (01151-0035-0009)

NIIN: 01-432-6224
In stock
NSN: 5331-01-432-6224
FSC Code: 5331
MPN: 0115100350009

5331-01-542-0780 (01151A)

NIIN: 01-542-0780
In stock
NSN: 5331-01-542-0780
FSC Code: 5331
MPN: 01151A

5331-99-610-6585 (01-174-6561)

NIIN: 99-610-6585
In stock
NSN: 5331-99-610-6585
FSC Code: 5331
MPN: 011746561

5331-00-427-7054 (23600R1)

NIIN: 00-427-7054
In stock
NSN: 5331-00-427-7054
FSC Code: 5331
MPN: 23600R1

5331-01-504-7117 (011BA)

NIIN: 01-504-7117
In stock
NSN: 5331-01-504-7117
FSC Code: 5331
MPN: 011BA

5331-01-100-0637 (2-360E540-8)

NIIN: 01-100-0637
In stock
NSN: 5331-01-100-0637
FSC Code: 5331
MPN: 2360E5408

5331-01-033-4369 (2-360N756-75)

NIIN: 01-033-4369
In stock
NSN: 5331-01-033-4369
FSC Code: 5331
MPN: 2360N75675

5331-01-274-3033 (2-360-S604-70)

NIIN: 01-274-3033
In stock
NSN: 5331-01-274-3033
FSC Code: 5331
MPN: 2360S60470

5331-01-006-0316 (2-360V0747-75)

NIIN: 01-006-0316
In stock
NSN: 5331-01-006-0316
FSC Code: 5331
MPN: 2360V074775

5331-00-763-2500 (2-361)

NIIN: 00-763-2500
In stock
NSN: 5331-00-763-2500
FSC Code: 5331
MPN: 2361

5331-00-838-0002 (236-11055)

NIIN: 00-838-0002
In stock
NSN: 5331-00-838-0002
FSC Code: 5331
MPN: 23611055

5331-01-118-2317 (2-361-E515-8)

NIIN: 01-118-2317
In stock
NSN: 5331-01-118-2317
FSC Code: 5331
MPN: 2361E5158

5331-01-006-0309 (2-361V0747-75)

NIIN: 01-006-0309
In stock
NSN: 5331-01-006-0309
FSC Code: 5331
MPN: 2361V074775

5331-01-506-4746 (0-1-2-1)

NIIN: 01-506-4746
In stock
NSN: 5331-01-506-4746
FSC Code: 5331
MPN: 0121

5331-01-183-4059 (2-361N304-75)

NIIN: 01-183-4059
In stock
NSN: 5331-01-183-4059
FSC Code: 5331
MPN: 2361N30475

5331-00-514-6858 (236-3177)

NIIN: 00-514-6858
In stock
NSN: 5331-00-514-6858
FSC Code: 5331
MPN: 2363177

5331-01-006-0317 (2-362V0747-75)

NIIN: 01-006-0317
In stock
NSN: 5331-01-006-0317
FSC Code: 5331
MPN: 2362V074775

5331-14-327-8734 (01210C7000A21B6)

NIIN: 14-327-8734
In stock
NSN: 5331-14-327-8734
FSC Code: 5331
MPN: 01210C7000A21B6

5331-00-143-7041 (2-363PS1-30-5)

NIIN: 00-143-7041
In stock
NSN: 5331-00-143-7041
FSC Code: 5331
MPN: 2363PS1305

5331-01-185-7228 (2-363S1032-70)

NIIN: 01-185-7228
In stock
NSN: 5331-01-185-7228
FSC Code: 5331
MPN: 2363S103270

5331-14-354-3569 (01210C7000A50D7)

NIIN: 14-354-3569
In stock
NSN: 5331-14-354-3569
FSC Code: 5331
MPN: 01210C7000A50D7

5331-00-001-4815 (2-364)

NIIN: 00-001-4815
In stock
NSN: 5331-00-001-4815
FSC Code: 5331
MPN: 2364

5331-01-006-0322 (2-363V0747-75)

NIIN: 01-006-0322
In stock
NSN: 5331-01-006-0322
FSC Code: 5331
MPN: 2363V074775

5331-01-462-6539 (0-12-1-15)

NIIN: 01-462-6539
In stock
NSN: 5331-01-462-6539
FSC Code: 5331
MPN: 012115

5331-01-543-2130 (0-12-1-29)

NIIN: 01-543-2130
In stock
NSN: 5331-01-543-2130
FSC Code: 5331
MPN: 012129

5331-01-527-1480 (0-12-1-28)

NIIN: 01-527-1480
In stock
NSN: 5331-01-527-1480
FSC Code: 5331
MPN: 012128