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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.

5331-01-563-4436 (ARP568-144-6865)

NIIN: 01-563-4436
In stock
NSN: 5331-01-563-4436
FSC Code: 5331
MPN: ARP5681446865

5331-01-432-5831 (PL-999D0838)

NIIN: 01-432-5831
In stock
NSN: 5331-01-432-5831
FSC Code: 5331
MPN: PL999D0838

5331-01-449-2012 (M3620-2354)

NIIN: 01-449-2012
In stock
NSN: 5331-01-449-2012
FSC Code: 5331
MPN: M36202354

5331-01-504-4261 (ARP-226B)

NIIN: 01-504-4261
In stock
NSN: 5331-01-504-4261
FSC Code: 5331
MPN: ARP226B

5331-01-500-1172 (ARP568-150)

NIIN: 01-500-1172
In stock
NSN: 5331-01-500-1172
FSC Code: 5331
MPN: ARP568150

5331-01-432-5830 (PL-999D0838PCNO19)

NIIN: 01-432-5830
In stock
NSN: 5331-01-432-5830
FSC Code: 5331
MPN: PL999D0838PCNO19

5331-01-469-2687 (ARP010/10)

NIIN: 01-469-2687
In stock
NSN: 5331-01-469-2687
FSC Code: 5331
MPN: ARP01010

5331-01-388-2601 (ARP568-124)

NIIN: 01-388-2601
In stock
NSN: 5331-01-388-2601
FSC Code: 5331
MPN: ARP568124

5331-01-388-2641 (ARP568-031)

NIIN: 01-388-2641
In stock
NSN: 5331-01-388-2641
FSC Code: 5331
MPN: ARP568031

5331-01-451-3805 (BM-MPL1123-316L)

NIIN: 01-451-3805
In stock
NSN: 5331-01-451-3805
FSC Code: 5331
MPN: BMMPL1123316L

5331-01-445-0583 (ARP-008V)

NIIN: 01-445-0583
In stock
NSN: 5331-01-445-0583
FSC Code: 5331
MPN: ARP008V

5331-01-504-4265 (ARP-217B)

NIIN: 01-504-4265
In stock
NSN: 5331-01-504-4265
FSC Code: 5331
MPN: ARP217B

5331-01-467-0554 (ARP152)

NIIN: 01-467-0554
In stock
NSN: 5331-01-467-0554
FSC Code: 5331
MPN: ARP152

5331-01-504-4263 (ARP-215B)

NIIN: 01-504-4263
In stock
NSN: 5331-01-504-4263
FSC Code: 5331
MPN: ARP215B

5331-01-572-2465 (M3759-2689)

NIIN: 01-572-2465
In stock
NSN: 5331-01-572-2465
FSC Code: 5331
MPN: M37592689

5331-01-572-2474 (M3759-2689)

NIIN: 01-572-2474
In stock
NSN: 5331-01-572-2474
FSC Code: 5331
MPN: M37592689

5331-17-053-6264 (ARP150-70NBR)

NIIN: 17-053-6264
In stock
NSN: 5331-17-053-6264
FSC Code: 5331
MPN: ARP15070NBR

5331-01-538-8527 (M3171-1192APC13)

NIIN: 01-538-8527
In stock
NSN: 5331-01-538-8527
FSC Code: 5331
MPN: M31711192APC13

5331-01-379-8945 (ARP-115V)

NIIN: 01-379-8945
In stock
NSN: 5331-01-379-8945
FSC Code: 5331
MPN: ARP115V

5331-01-341-8024 (ARP)

NIIN: 01-341-8024
In stock
NSN: 5331-01-341-8024
FSC Code: 5331
MPN: ARP

5331-01-459-2059 (M3672-2370)

NIIN: 01-459-2059
In stock
NSN: 5331-01-459-2059
FSC Code: 5331
MPN: M36722370

5331-01-459-2062 (M3672-2370)

NIIN: 01-459-2062
In stock
NSN: 5331-01-459-2062
FSC Code: 5331
MPN: M36722370

5331-01-459-2061 (M3672-2370)

NIIN: 01-459-2061
In stock
NSN: 5331-01-459-2061
FSC Code: 5331
MPN: M36722370

5331-01-459-2057 (M3672-2370)

NIIN: 01-459-2057
In stock
NSN: 5331-01-459-2057
FSC Code: 5331
MPN: M36722370

5331-01-250-1388 (P014245)

NIIN: 01-250-1388
In stock
NSN: 5331-01-250-1388
FSC Code: 5331
MPN: P014245

5331-01-351-6992 (ARB1039-5)

NIIN: 01-351-6992
In stock
NSN: 5331-01-351-6992
FSC Code: 5331
MPN: ARB10395

5331-01-308-1200 (OV-11-212)

NIIN: 01-308-1200
In stock
NSN: 5331-01-308-1200
FSC Code: 5331
MPN: OV11212

5331-01-310-7004 (OV-11-006)

NIIN: 01-310-7004
In stock
NSN: 5331-01-310-7004
FSC Code: 5331
MPN: OV11006

5331-01-453-2671 (MIL-R-83248/1)

NIIN: 01-453-2671
In stock
NSN: 5331-01-453-2671
FSC Code: 5331
MPN: MILR832481

5331-01-508-2248 (AR3328)

NIIN: 01-508-2248
In stock
NSN: 5331-01-508-2248
FSC Code: 5331
MPN: AR3328

5331-01-274-2802 (OR151)

NIIN: 01-274-2802
In stock
NSN: 5331-01-274-2802
FSC Code: 5331
MPN: OR151

5331-01-274-4319 (OR140)

NIIN: 01-274-4319
In stock
NSN: 5331-01-274-4319
FSC Code: 5331
MPN: OR140

5331-01-253-5890 (ON65237.53.63)

NIIN: 01-253-5890
In stock
NSN: 5331-01-253-5890
FSC Code: 5331
MPN: ON652375363

5331-01-428-7583 (AQ3:75804E)

NIIN: 01-428-7583
In stock
NSN: 5331-01-428-7583
FSC Code: 5331
MPN: AQ375804E

5331-01-428-3649 (AQ3:75804E)

NIIN: 01-428-3649
In stock
NSN: 5331-01-428-3649
FSC Code: 5331
MPN: AQ375804E

5331-01-428-7585 (AQ3:75804E)

NIIN: 01-428-7585
In stock
NSN: 5331-01-428-7585
FSC Code: 5331
MPN: AQ375804E

5331-01-428-7584 (AQ3:75804E)

NIIN: 01-428-7584
In stock
NSN: 5331-01-428-7584
FSC Code: 5331
MPN: AQ375804E

5331-01-342-5717 (APR-139-TFE)

NIIN: 01-342-5717
In stock
NSN: 5331-01-342-5717
FSC Code: 5331
MPN: APR139TFE

5331-01-344-2495 (APR-232-TFE)

NIIN: 01-344-2495
In stock
NSN: 5331-01-344-2495
FSC Code: 5331
MPN: APR232TFE

5331-01-469-8239 (APG)

NIIN: 01-469-8239
In stock
NSN: 5331-01-469-8239
FSC Code: 5331
MPN: APG

5331-01-320-5832 (OB-1500ID-250)

NIIN: 01-320-5832
In stock
NSN: 5331-01-320-5832
FSC Code: 5331
MPN: OB1500ID250

5331-01-188-0863 (OBG-60-90)

NIIN: 01-188-0863
In stock
NSN: 5331-01-188-0863
FSC Code: 5331
MPN: OBG6090

5331-01-357-7212 (X5433-30-001/19)

NIIN: 01-357-7212
In stock
NSN: 5331-01-357-7212
FSC Code: 5331
MPN: X54333000119

5331-01-392-1013 (AP2641N10L)

NIIN: 01-392-1013
In stock
NSN: 5331-01-392-1013
FSC Code: 5331
MPN: AP2641N10L

5331-01-468-8766 (W078200-TFE)

NIIN: 01-468-8766
In stock
NSN: 5331-01-468-8766
FSC Code: 5331
MPN: W078200TFE

5331-00-816-2493 (NU58-497SH1PC27)

NIIN: 00-816-2493
In stock
NSN: 5331-00-816-2493
FSC Code: 5331
MPN: NU58497SH1PC27

5331-01-328-3725 (NS92125CM40-19)

NIIN: 01-328-3725
In stock
NSN: 5331-01-328-3725
FSC Code: 5331
MPN: NS92125CM4019

5331-01-312-0159 (NS71103CM40-6)

NIIN: 01-312-0159
In stock
NSN: 5331-01-312-0159
FSC Code: 5331
MPN: NS71103CM406