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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.

5331-01-609-4546 (137R010)

NIIN: 01-609-4546
In stock
NSN: 5331-01-609-4546
FSC Code: 5331
MPN: 137R010

5331-01-609-3072 (609000009)

NIIN: 01-609-3072
In stock
NSN: 5331-01-609-3072
FSC Code: 5331
MPN: 609000009

5331-01-609-3086 (652375363)

NIIN: 01-609-3086
In stock
NSN: 5331-01-609-3086
FSC Code: 5331
MPN: 652375363

5331-01-609-2576 (O-8-3-32)

NIIN: 01-609-2576
In stock
NSN: 5331-01-609-2576
FSC Code: 5331
MPN: O8332

5331-01-609-2311 (6305E33-ITEM16)

NIIN: 01-609-2311
In stock
NSN: 5331-01-609-2311
FSC Code: 5331
MPN: 6305E33ITEM16

5331-01-609-1648 (4400571-2380)

NIIN: 01-609-1648
In stock
NSN: 5331-01-609-1648
FSC Code: 5331
MPN: 44005712380

5331-01-609-0893 (332/G3368)

NIIN: 01-609-0893
In stock
NSN: 5331-01-609-0893
FSC Code: 5331
MPN: 332G3368

5331-01-608-8616 (M22020-1-906)

NIIN: 01-608-8616
In stock
NSN: 5331-01-608-8616
FSC Code: 5331
MPN: M220201906

5331-01-609-7190 (THR-HS-ORING)

NIIN: 01-609-7190
In stock
NSN: 5331-01-609-7190
FSC Code: 5331
MPN: THRHSORING

5331-01-609-5851 (AS568-042)

NIIN: 01-609-5851
In stock
NSN: 5331-01-609-5851
FSC Code: 5331
MPN: AS568042

5331-01-609-2844 (412110)

NIIN: 01-609-2844
In stock
NSN: 5331-01-609-2844
FSC Code: 5331
MPN: 412110

5331-01-609-2563 (O-12-2-14)

NIIN: 01-609-2563
In stock
NSN: 5331-01-609-2563
FSC Code: 5331
MPN: O12214

5331-01-608-8102 (T14730)

NIIN: 01-608-8102
In stock
NSN: 5331-01-608-8102
FSC Code: 5331
MPN: T14730

5331-01-609-3611 (10673118-242)

NIIN: 01-609-3611
In stock
NSN: 5331-01-609-3611
FSC Code: 5331
MPN: 10673118242

5331-01-609-0970 (S07963-040)

NIIN: 01-609-0970
In stock
NSN: 5331-01-609-0970
FSC Code: 5331
MPN: S07963040

5331-01-609-0642 (50978460)

NIIN: 01-609-0642
In stock
NSN: 5331-01-609-0642
FSC Code: 5331
MPN: 50978460

5331-01-609-0396 (50101)

NIIN: 01-609-0396
In stock
NSN: 5331-01-609-0396
FSC Code: 5331
MPN: 50101

5331-01-608-8370 (510121)

NIIN: 01-608-8370
In stock
NSN: 5331-01-608-8370
FSC Code: 5331
MPN: 510121

5331-01-608-5865 (47158)

NIIN: 01-608-5865
In stock
NSN: 5331-01-608-5865
FSC Code: 5331
MPN: 47158

5331-01-609-2431 (3E-6722)

NIIN: 01-609-2431
In stock
NSN: 5331-01-609-2431
FSC Code: 5331
MPN: 3E6722

5331-01-609-2186 (4400571-0220)

NIIN: 01-609-2186
In stock
NSN: 5331-01-609-2186
FSC Code: 5331
MPN: 44005710220

5331-01-609-0691 (33-1461)

NIIN: 01-609-0691
In stock
NSN: 5331-01-609-0691
FSC Code: 5331
MPN: 331461

5331-01-609-0310 (7-57-159)

NIIN: 01-609-0310
In stock
NSN: 5331-01-609-0310
FSC Code: 5331
MPN: 757159

5331-01-608-8067 (347/22503)

NIIN: 01-608-8067
In stock
NSN: 5331-01-608-8067
FSC Code: 5331
MPN: 34722503

5331-01-608-7277 (845-7526224-X1XX-17)

NIIN: 01-608-7277
In stock
NSN: 5331-01-608-7277
FSC Code: 5331
MPN: 8457526224X1XX17

5331-01-608-6343 (88565 PC 18)

NIIN: 01-608-6343
In stock
NSN: 5331-01-608-6343
FSC Code: 5331
MPN: 88565PC18

5331-01-608-5697 (201L-S-NVG, REV-IT 17)

NIIN: 01-608-5697
In stock
NSN: 5331-01-608-5697
FSC Code: 5331
MPN: 201LSNVGREVIT17

5331-01-608-5554 (B-631-22137-1)

NIIN: 01-608-5554
In stock
NSN: 5331-01-608-5554
FSC Code: 5331
MPN: B631221371

5331-01-608-5403 (TI4728)

NIIN: 01-608-5403
In stock
NSN: 5331-01-608-5403
FSC Code: 5331
MPN: TI4728

5331-01-609-5515 (P03558)

NIIN: 01-609-5515
In stock
NSN: 5331-01-609-5515
FSC Code: 5331
MPN: P03558

5331-01-609-4566 (137R904)

NIIN: 01-609-4566
In stock
NSN: 5331-01-609-4566
FSC Code: 5331
MPN: 137R904

5331-01-609-3083 (652667068)

NIIN: 01-609-3083
In stock
NSN: 5331-01-609-3083
FSC Code: 5331
MPN: 652667068

5331-01-609-1997 (2-032-N90)

NIIN: 01-609-1997
In stock
NSN: 5331-01-609-1997
FSC Code: 5331
MPN: 2032N90

5331-01-609-0210 (1-090-10200)

NIIN: 01-609-0210
In stock
NSN: 5331-01-609-0210
FSC Code: 5331
MPN: 109010200

5331-01-608-8456 (0860070005)

NIIN: 01-608-8456
In stock
NSN: 5331-01-608-8456
FSC Code: 5331
MPN: 0860070005

5331-01-608-5475 (T14726)

NIIN: 01-608-5475
In stock
NSN: 5331-01-608-5475
FSC Code: 5331
MPN: T14726

5331-01-608-5191 (10/300613)

NIIN: 01-608-5191
In stock
NSN: 5331-01-608-5191
FSC Code: 5331
MPN: 10300613

5331-01-608-4655 (2-115-N0602-70)

NIIN: 01-608-4655
In stock
NSN: 5331-01-608-4655
FSC Code: 5331
MPN: 2115N060270

5331-01-609-3082 (652112663)

NIIN: 01-609-3082
In stock
NSN: 5331-01-609-3082
FSC Code: 5331
MPN: 652112663

5331-01-609-2650 (347/22335)

NIIN: 01-609-2650
In stock
NSN: 5331-01-609-2650
FSC Code: 5331
MPN: 34722335

5331-01-609-2577 (O-1-5-4)

NIIN: 01-609-2577
In stock
NSN: 5331-01-609-2577
FSC Code: 5331
MPN: O154

5331-01-609-2595 (O-6-1-7)

NIIN: 01-609-2595
In stock
NSN: 5331-01-609-2595
FSC Code: 5331
MPN: O617

5331-01-609-2596 (O-3-1-9)

NIIN: 01-609-2596
In stock
NSN: 5331-01-609-2596
FSC Code: 5331
MPN: O319

5331-01-609-2307 (6305E33-ITEM14)

NIIN: 01-609-2307
In stock
NSN: 5331-01-609-2307
FSC Code: 5331
MPN: 6305E33ITEM14

5331-01-609-0325 (MS29513-22)

NIIN: 01-609-0325
In stock
NSN: 5331-01-609-0325
FSC Code: 5331
MPN: MS2951322

5331-01-608-8074 (347/22500)

NIIN: 01-608-8074
In stock
NSN: 5331-01-608-8074
FSC Code: 5331
MPN: 34722500

5331-01-608-6344 (88565N PC 24)

NIIN: 01-608-6344
In stock
NSN: 5331-01-608-6344
FSC Code: 5331
MPN: 88565NPC24

5331-01-608-3896 (DAAK002140 SEQ 22)

NIIN: 01-608-3896
In stock
NSN: 5331-01-608-3896
FSC Code: 5331
MPN: DAAK002140SEQ22