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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.

5331-01-606-3213 (218753)

NIIN: 01-606-3213
In stock
NSN: 5331-01-606-3213
FSC Code: 5331
MPN: 218753

5331-01-606-2851 (845-7526218-11XX-11)

NIIN: 01-606-2851
In stock
NSN: 5331-01-606-2851
FSC Code: 5331
MPN: 845752621811XX11

5331-01-606-2173 (KS9261AP PC NO 20)

NIIN: 01-606-2173
In stock
NSN: 5331-01-606-2173
FSC Code: 5331
MPN: KS9261APPCNO20

5331-01-606-0070 (0R309)

NIIN: 01-606-0070
In stock
NSN: 5331-01-606-0070
FSC Code: 5331
MPN: 0R309

5331-01-605-9571 (02/911206)

NIIN: 01-605-9571
In stock
NSN: 5331-01-605-9571
FSC Code: 5331
MPN: 02911206

5331-01-605-8845 (655069368)

NIIN: 01-605-8845
In stock
NSN: 5331-01-605-8845
FSC Code: 5331
MPN: 655069368

5331-01-605-8891 (652122663)

NIIN: 01-605-8891
In stock
NSN: 5331-01-605-8891
FSC Code: 5331
MPN: 652122663

5331-01-605-8627 (74514-89)

NIIN: 01-605-8627
In stock
NSN: 5331-01-605-8627
FSC Code: 5331
MPN: 7451489

5331-01-605-8322 (72277-2-05-31)

NIIN: 01-605-8322
In stock
NSN: 5331-01-605-8322
FSC Code: 5331
MPN: 7227720531

5331-01-606-6300 (AS43013-216)

NIIN: 01-606-6300
In stock
NSN: 5331-01-606-6300
FSC Code: 5331
MPN: AS43013216

5331-01-606-4897 (710-012-SIL)

NIIN: 01-606-4897
In stock
NSN: 5331-01-606-4897
FSC Code: 5331
MPN: 710012SIL

5331-01-606-4895 (710-020-SIL)

NIIN: 01-606-4895
In stock
NSN: 5331-01-606-4895
FSC Code: 5331
MPN: 710020SIL

5331-01-606-3261 (1218-26)

NIIN: 01-606-3261
In stock
NSN: 5331-01-606-3261
FSC Code: 5331
MPN: 121826

5331-01-605-9829 (2-346C1124-70)

NIIN: 01-605-9829
In stock
NSN: 5331-01-605-9829
FSC Code: 5331
MPN: 2346C112470

5331-01-605-8267 (K26 25150 114)

NIIN: 01-605-8267
In stock
NSN: 5331-01-605-8267
FSC Code: 5331
MPN: K2625150114

5331-01-605-8345 (72277-2-23-00)

NIIN: 01-605-8345
In stock
NSN: 5331-01-605-8345
FSC Code: 5331
MPN: 7227722300

5331-01-606-5180 (L1120 2-004)

NIIN: 01-606-5180
In stock
NSN: 5331-01-606-5180
FSC Code: 5331
MPN: L11202004

5331-01-606-4818 (F1DZ 7Z484 A)

NIIN: 01-606-4818
In stock
NSN: 5331-01-606-4818
FSC Code: 5331
MPN: F1DZ7Z484A

5331-01-606-2114 (P31996)

NIIN: 01-606-2114
In stock
NSN: 5331-01-606-2114
FSC Code: 5331
MPN: P31996

5331-01-606-1402 (5051-126)

NIIN: 01-606-1402
In stock
NSN: 5331-01-606-1402
FSC Code: 5331
MPN: 5051126

5331-01-605-8292 (72277-2-22-00)

NIIN: 01-605-8292
In stock
NSN: 5331-01-605-8292
FSC Code: 5331
MPN: 7227722200

5331-01-605-7313 (29715)

NIIN: 01-605-7313
In stock
NSN: 5331-01-605-7313
FSC Code: 5331
MPN: 29715

5331-01-605-5524 (26KP544)

NIIN: 01-605-5524
In stock
NSN: 5331-01-605-5524
FSC Code: 5331
MPN: 26KP544

5331-01-605-5450 (1001-2 OXYGEN CLEANCP)

NIIN: 01-605-5450
In stock
NSN: 5331-01-605-5450
FSC Code: 5331
MPN: 10012OXYGENCLEANCP

5331-01-606-4820 (F2VY 7Z484 A)

NIIN: 01-606-4820
In stock
NSN: 5331-01-606-4820
FSC Code: 5331
MPN: F2VY7Z484A

5331-01-606-4509 (2-019/C0557-70)

NIIN: 01-606-4509
In stock
NSN: 5331-01-606-4509
FSC Code: 5331
MPN: 2019C055770

5331-01-606-3056 (A9548 REV D ITEM 1CP)

NIIN: 01-606-3056
In stock
NSN: 5331-01-606-3056
FSC Code: 5331
MPN: A9548REVDITEM1CP

5331-01-606-1881 (1000-0004-904)

NIIN: 01-606-1881
In stock
NSN: 5331-01-606-1881
FSC Code: 5331
MPN: 10000004904

5331-01-606-1900 (NAS1611-116A)

NIIN: 01-606-1900
In stock
NSN: 5331-01-606-1900
FSC Code: 5331
MPN: NAS1611116A

5331-01-606-1776 (310190477)

NIIN: 01-606-1776
In stock
NSN: 5331-01-606-1776
FSC Code: 5331
MPN: 310190477

5331-01-605-5993 (HP-10A)

NIIN: 01-605-5993
In stock
NSN: 5331-01-605-5993
FSC Code: 5331
MPN: HP10A

5331-01-606-4181 (2AEE12002)

NIIN: 01-606-4181
In stock
NSN: 5331-01-606-4181
FSC Code: 5331
MPN: 2AEE12002

5331-01-606-2528 (M83461/1-386)

NIIN: 01-606-2528
In stock
NSN: 5331-01-606-2528
FSC Code: 5331
MPN: M834611386

5331-01-605-9144 (675-0224-B46)

NIIN: 01-605-9144
In stock
NSN: 5331-01-605-9144
FSC Code: 5331
MPN: 6750224B46

5331-01-605-8777 (00656038503)

NIIN: 01-605-8777
In stock
NSN: 5331-01-605-8777
FSC Code: 5331
MPN: 00656038503

5331-01-605-5634 (D50-0068 ITEM 32)

NIIN: 01-605-5634
In stock
NSN: 5331-01-605-5634
FSC Code: 5331
MPN: D500068ITEM32

5331-01-605-5559 (878285)

NIIN: 01-605-5559
In stock
NSN: 5331-01-605-5559
FSC Code: 5331
MPN: 878285

5331-01-605-4157 (9782905)

NIIN: 01-605-4157
In stock
NSN: 5331-01-605-4157
FSC Code: 5331
MPN: 9782905

5331-01-606-3080 (A9548 REV D ITEM 2CP)

NIIN: 01-606-3080
In stock
NSN: 5331-01-606-3080
FSC Code: 5331
MPN: A9548REVDITEM2CP

5331-01-606-2416 (330566)

NIIN: 01-606-2416
In stock
NSN: 5331-01-606-2416
FSC Code: 5331
MPN: 330566

5331-01-605-9134 (NAS1593-243)

NIIN: 01-605-9134
In stock
NSN: 5331-01-605-9134
FSC Code: 5331
MPN: NAS1593243

5331-01-605-9141 (MA3352B0280)

NIIN: 01-605-9141
In stock
NSN: 5331-01-605-9141
FSC Code: 5331
MPN: MA3352B0280

5331-01-605-9111 (350-32542)

NIIN: 01-605-9111
In stock
NSN: 5331-01-605-9111
FSC Code: 5331
MPN: 35032542

5331-01-605-9087 (NAS1611-224A)

NIIN: 01-605-9087
In stock
NSN: 5331-01-605-9087
FSC Code: 5331
MPN: NAS1611224A

5331-01-605-8900 (NAS1611-003A)

NIIN: 01-605-8900
In stock
NSN: 5331-01-605-8900
FSC Code: 5331
MPN: NAS1611003A

5331-01-606-2329 (AS568-261-25732)

NIIN: 01-606-2329
In stock
NSN: 5331-01-606-2329
FSC Code: 5331
MPN: AS56826125732

5331-01-606-0872 (25KP720)

NIIN: 01-606-0872
In stock
NSN: 5331-01-606-0872
FSC Code: 5331
MPN: 25KP720

5331-01-605-9540 (2-050N674)

NIIN: 01-605-9540
In stock
NSN: 5331-01-605-9540
FSC Code: 5331
MPN: 2050N674