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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.

5331-01-006-3727 (29790-125)

NIIN: 01-006-3727
In stock
NSN: 5331-01-006-3727
FSC Code: 5331
MPN: 29790125

5331-01-036-4617 (29771-043)

NIIN: 01-036-4617
In stock
NSN: 5331-01-036-4617
FSC Code: 5331
MPN: 29771043

5331-01-419-9252 (2410638000RK)

NIIN: 01-419-9252
In stock
NSN: 5331-01-419-9252
FSC Code: 5331
MPN: 2410638000RK

5331-01-282-8208 (29771-137)

NIIN: 01-282-8208
In stock
NSN: 5331-01-282-8208
FSC Code: 5331
MPN: 29771137

5331-01-210-9330 (29771-012)

NIIN: 01-210-9330
In stock
NSN: 5331-01-210-9330
FSC Code: 5331
MPN: 29771012

5331-01-407-7233 (10006-1103)

NIIN: 01-407-7233
In stock
NSN: 5331-01-407-7233
FSC Code: 5331
MPN: 100061103

5331-00-185-0837 (29761-034)

NIIN: 00-185-0837
In stock
NSN: 5331-00-185-0837
FSC Code: 5331
MPN: 29761034

5331-01-559-3284 (100056B)

NIIN: 01-559-3284
In stock
NSN: 5331-01-559-3284
FSC Code: 5331
MPN: 100056B

5331-00-941-3011 (297459R1)

NIIN: 00-941-3011
In stock
NSN: 5331-00-941-3011
FSC Code: 5331
MPN: 297459R1

5331-01-195-8733 (2971-19PC18)

NIIN: 01-195-8733
In stock
NSN: 5331-01-195-8733
FSC Code: 5331
MPN: 297119PC18

5331-01-201-0152 (297010-00-0)

NIIN: 01-201-0152
In stock
NSN: 5331-01-201-0152
FSC Code: 5331
MPN: 297010000

5331-01-285-2599 (297029-00-8)

NIIN: 01-285-2599
In stock
NSN: 5331-01-285-2599
FSC Code: 5331
MPN: 297029008

5331-00-070-1903 (297060R1)

NIIN: 00-070-1903
In stock
NSN: 5331-00-070-1903
FSC Code: 5331
MPN: 297060R1

5331-01-159-1536 (297039-00-8)

NIIN: 01-159-1536
In stock
NSN: 5331-01-159-1536
FSC Code: 5331
MPN: 297039008

5331-01-151-5559 (297010-00-0)

NIIN: 01-151-5559
In stock
NSN: 5331-01-151-5559
FSC Code: 5331
MPN: 297010000

5331-00-543-6815 (296967R1)

NIIN: 00-543-6815
In stock
NSN: 5331-00-543-6815
FSC Code: 5331
MPN: 296967R1

5331-00-234-4859 (296967H1)

NIIN: 00-234-4859
In stock
NSN: 5331-00-234-4859
FSC Code: 5331
MPN: 296967H1

5331-00-862-7173 (29690-18)

NIIN: 00-862-7173
In stock
NSN: 5331-00-862-7173
FSC Code: 5331
MPN: 2969018

5331-00-599-0635 (2968-49ALT2PCD3)

NIIN: 00-599-0635
In stock
NSN: 5331-00-599-0635
FSC Code: 5331
MPN: 296849ALT2PCD3

5331-99-970-0244 (VA-49-0042-045)

NIIN: 99-970-0244
In stock
NSN: 5331-99-970-0244
FSC Code: 5331
MPN: VA490042045

5331-99-868-9831 (VA-49-0061-042)

NIIN: 99-868-9831
In stock
NSN: 5331-99-868-9831
FSC Code: 5331
MPN: VA490061042

5331-01-357-3945 (100-045-1109)

NIIN: 01-357-3945
In stock
NSN: 5331-01-357-3945
FSC Code: 5331
MPN: 1000451109

5331-99-816-8411 (VA-49-0061-041)

NIIN: 99-816-8411
In stock
NSN: 5331-99-816-8411
FSC Code: 5331
MPN: VA490061041

5331-99-056-2519 (VA-49-0061-043)

NIIN: 99-056-2519
In stock
NSN: 5331-99-056-2519
FSC Code: 5331
MPN: VA490061043

5331-99-104-9725 (VA0-490042-041)

NIIN: 99-104-9725
In stock
NSN: 5331-99-104-9725
FSC Code: 5331
MPN: VA0490042041

5331-99-001-2003 (100-040-0270)

NIIN: 99-001-2003
In stock
NSN: 5331-99-001-2003
FSC Code: 5331
MPN: 1000400270

5331-99-993-9605 (VA-49-0061-040)

NIIN: 99-993-9605
In stock
NSN: 5331-99-993-9605
FSC Code: 5331
MPN: VA490061040

5331-01-357-3942 (100-038-8810)

NIIN: 01-357-3942
In stock
NSN: 5331-01-357-3942
FSC Code: 5331
MPN: 1000388810

5331-99-786-1287 (VA-49-0042-036)

NIIN: 99-786-1287
In stock
NSN: 5331-99-786-1287
FSC Code: 5331
MPN: VA490042036

5331-00-115-8826 (29650ZB)

NIIN: 00-115-8826
In stock
NSN: 5331-00-115-8826
FSC Code: 5331
MPN: 29650ZB

5331-01-274-5601 (29653LB)

NIIN: 01-274-5601
In stock
NSN: 5331-01-274-5601
FSC Code: 5331
MPN: 29653LB

5331-99-952-5978 (VA-49-0042-033)

NIIN: 99-952-5978
In stock
NSN: 5331-99-952-5978
FSC Code: 5331
MPN: VA490042033

5331-00-058-2145 (29650R)

NIIN: 00-058-2145
In stock
NSN: 5331-00-058-2145
FSC Code: 5331
MPN: 29650R

5331-01-341-6490 (100-034-0640)

NIIN: 01-341-6490
In stock
NSN: 5331-01-341-6490
FSC Code: 5331
MPN: 1000340640

5331-00-064-4356 (29650ZA)

NIIN: 00-064-4356
In stock
NSN: 5331-00-064-4356
FSC Code: 5331
MPN: 29650ZA

5331-00-064-4354 (29650SA)

NIIN: 00-064-4354
In stock
NSN: 5331-00-064-4354
FSC Code: 5331
MPN: 29650SA

5331-00-115-8827 (29650FC)

NIIN: 00-115-8827
In stock
NSN: 5331-00-115-8827
FSC Code: 5331
MPN: 29650FC

5331-00-065-0193 (29650KA)

NIIN: 00-065-0193
In stock
NSN: 5331-00-065-0193
FSC Code: 5331
MPN: 29650KA

5331-99-826-0552 (100-030-0106)

NIIN: 99-826-0552
In stock
NSN: 5331-99-826-0552
FSC Code: 5331
MPN: 1000300106

5331-00-065-0194 (29650DB)

NIIN: 00-065-0194
In stock
NSN: 5331-00-065-0194
FSC Code: 5331
MPN: 29650DB

5331-00-116-9786 (29650AC)

NIIN: 00-116-9786
In stock
NSN: 5331-00-116-9786
FSC Code: 5331
MPN: 29650AC

5331-99-145-1026 (100-028-1109)

NIIN: 99-145-1026
In stock
NSN: 5331-99-145-1026
FSC Code: 5331
MPN: 1000281109

5331-99-826-0554 (100-026-0106)

NIIN: 99-826-0554
In stock
NSN: 5331-99-826-0554
FSC Code: 5331
MPN: 1000260106

5331-99-945-3473 (VA-49-0042-027)

NIIN: 99-945-3473
In stock
NSN: 5331-99-945-3473
FSC Code: 5331
MPN: VA490042027

5331-99-000-3102 (100-022-0106)

NIIN: 99-000-3102
In stock
NSN: 5331-99-000-3102
FSC Code: 5331
MPN: 1000220106

5331-01-359-6710 (100-021-8819)

NIIN: 01-359-6710
In stock
NSN: 5331-01-359-6710
FSC Code: 5331
MPN: 1000218819

5331-01-373-6248 (10-00-2085-1285)

NIIN: 01-373-6248
In stock
NSN: 5331-01-373-6248
FSC Code: 5331
MPN: 100020851285

5331-01-341-2136 (10-00-2068-1217)

NIIN: 01-341-2136
In stock
NSN: 5331-01-341-2136
FSC Code: 5331
MPN: 100020681217