Skip to content

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.

5331-01-278-1730 (D14000-3)

NIIN: 01-278-1730
In stock
NSN: 5331-01-278-1730
FSC Code: 5331
MPN: D140003

5331-01-283-7485 (D14000-126)

NIIN: 01-283-7485
In stock
NSN: 5331-01-283-7485
FSC Code: 5331
MPN: D14000126

5331-01-264-0156 (D-1221-E)

NIIN: 01-264-0156
In stock
NSN: 5331-01-264-0156
FSC Code: 5331
MPN: D1221E

5331-01-274-6008 (D-1221-E)

NIIN: 01-274-6008
In stock
NSN: 5331-01-274-6008
FSC Code: 5331
MPN: D1221E

5331-01-298-8056 (D-1221-4'-10)

NIIN: 01-298-8056
In stock
NSN: 5331-01-298-8056
FSC Code: 5331
MPN: D1221410

5331-00-765-2679 (D1173N)

NIIN: 00-765-2679
In stock
NSN: 5331-00-765-2679
FSC Code: 5331
MPN: D1173N

5331-01-146-9922 (D-1136-33)

NIIN: 01-146-9922
In stock
NSN: 5331-01-146-9922
FSC Code: 5331
MPN: D113633

5331-01-299-3141 (D-1136-3)

NIIN: 01-299-3141
In stock
NSN: 5331-01-299-3141
FSC Code: 5331
MPN: D11363

5331-01-174-3476 (D-1105-24)

NIIN: 01-174-3476
In stock
NSN: 5331-01-174-3476
FSC Code: 5331
MPN: D110524

5331-01-299-3144 (D-1105-5)

NIIN: 01-299-3144
In stock
NSN: 5331-01-299-3144
FSC Code: 5331
MPN: D11055

5331-01-299-3143 (D-1105-6)

NIIN: 01-299-3143
In stock
NSN: 5331-01-299-3143
FSC Code: 5331
MPN: D11056

5331-00-470-5631 (D-1105-106)

NIIN: 00-470-5631
In stock
NSN: 5331-00-470-5631
FSC Code: 5331
MPN: D1105106

5331-01-299-3142 (D-1105-163)

NIIN: 01-299-3142
In stock
NSN: 5331-01-299-3142
FSC Code: 5331
MPN: D1105163

5331-01-297-2769 (D106825)

NIIN: 01-297-2769
In stock
NSN: 5331-01-297-2769
FSC Code: 5331
MPN: D106825

5331-01-020-6927 (D106374)

NIIN: 01-020-6927
In stock
NSN: 5331-01-020-6927
FSC Code: 5331
MPN: D106374

5331-01-203-2568 (D1046)

NIIN: 01-203-2568
In stock
NSN: 5331-01-203-2568
FSC Code: 5331
MPN: D1046

5331-01-203-2569 (D1047)

NIIN: 01-203-2569
In stock
NSN: 5331-01-203-2569
FSC Code: 5331
MPN: D1047

5331-01-203-0733 (D1035)

NIIN: 01-203-0733
In stock
NSN: 5331-01-203-0733
FSC Code: 5331
MPN: D1035

5331-01-203-0732 (D1034)

NIIN: 01-203-0732
In stock
NSN: 5331-01-203-0732
FSC Code: 5331
MPN: D1034

5331-01-305-6010 (D-102-E-3.00-15)

NIIN: 01-305-6010
In stock
NSN: 5331-01-305-6010
FSC Code: 5331
MPN: D102E30015

5331-00-419-3344 (D102-0699-000-408J)

NIIN: 00-419-3344
In stock
NSN: 5331-00-419-3344
FSC Code: 5331
MPN: D1020699000408J

5331-01-312-6967 (D100752110)

NIIN: 01-312-6967
In stock
NSN: 5331-01-312-6967
FSC Code: 5331
MPN: D100752110

5331-01-312-6966 (D100742110)

NIIN: 01-312-6966
In stock
NSN: 5331-01-312-6966
FSC Code: 5331
MPN: D100742110

5331-00-250-6075 (D10002)

NIIN: 00-250-6075
In stock
NSN: 5331-00-250-6075
FSC Code: 5331
MPN: D10002

5331-00-111-7542 (D080SA44069PC4)

NIIN: 00-111-7542
In stock
NSN: 5331-00-111-7542
FSC Code: 5331
MPN: D080SA44069PC4

5331-01-170-8668 (D030-OR)

NIIN: 01-170-8668
In stock
NSN: 5331-01-170-8668
FSC Code: 5331
MPN: D030OR

5331-01-163-5596 (D-02N-0-99-019PC18)

NIIN: 01-163-5596
In stock
NSN: 5331-01-163-5596
FSC Code: 5331
MPN: D02N099019PC18

5331-00-917-4270 (D0-2)

NIIN: 00-917-4270
In stock
NSN: 5331-00-917-4270
FSC Code: 5331
MPN: D02

5331-01-149-7730 (D015-0R)

NIIN: 01-149-7730
In stock
NSN: 5331-01-149-7730
FSC Code: 5331
MPN: D0150R

5331-01-324-4824 (D-0068-R-119)

NIIN: 01-324-4824
In stock
NSN: 5331-01-324-4824
FSC Code: 5331
MPN: D0068R119

5331-01-279-2245 (D-0096-33B-RB-25)

NIIN: 01-279-2245
In stock
NSN: 5331-01-279-2245
FSC Code: 5331
MPN: D009633BRB25

5331-01-312-0164 (D-0054-33A-367)

NIIN: 01-312-0164
In stock
NSN: 5331-01-312-0164
FSC Code: 5331
MPN: D005433A367

5331-01-312-0165 (D-0054-13-367)

NIIN: 01-312-0165
In stock
NSN: 5331-01-312-0165
FSC Code: 5331
MPN: D005413367

5331-01-284-5209 (D-0040-0-RB-33B)

NIIN: 01-284-5209
In stock
NSN: 5331-01-284-5209
FSC Code: 5331
MPN: D00400RB33B

5331-01-309-2478 (D-0017-13-369-3/8IN)

NIIN: 01-309-2478
In stock
NSN: 5331-01-309-2478
FSC Code: 5331
MPN: D00171336938IN

5331-01-324-4828 (D-0006-R-25)

NIIN: 01-324-4828
In stock
NSN: 5331-01-324-4828
FSC Code: 5331
MPN: D0006R25

5331-01-324-4827 (D-0001-R-8)

NIIN: 01-324-4827
In stock
NSN: 5331-01-324-4827
FSC Code: 5331
MPN: D0001R8

5331-01-206-6815 (D)

NIIN: 01-206-6815
In stock
NSN: 5331-01-206-6815
FSC Code: 5331
MPN: D

5331-22-269-1817 (6-892A-A)

NIIN: 22-269-1817
In stock
NSN: 5331-22-269-1817
FSC Code: 5331
MPN: 6892AA

5331-01-567-9939 (68898-32)

NIIN: 01-567-9939
In stock
NSN: 5331-01-567-9939
FSC Code: 5331
MPN: 6889832

5331-01-389-4196 (6884-001)

NIIN: 01-389-4196
In stock
NSN: 5331-01-389-4196
FSC Code: 5331
MPN: 6884001

5331-00-579-8098 (CX140PC19)

NIIN: 00-579-8098
In stock
NSN: 5331-00-579-8098
FSC Code: 5331
MPN: CX140PC19

5331-01-326-1900 (CWK576-2-13)

NIIN: 01-326-1900
In stock
NSN: 5331-01-326-1900
FSC Code: 5331
MPN: CWK576213

5331-00-769-2983 (CW-686PP)

NIIN: 00-769-2983
In stock
NSN: 5331-00-769-2983
FSC Code: 5331
MPN: CW686PP

5331-00-769-2956 (CW2300HPC621)

NIIN: 00-769-2956
In stock
NSN: 5331-00-769-2956
FSC Code: 5331
MPN: CW2300HPC621

5331-01-178-1262 (CW2300CG)

NIIN: 01-178-1262
In stock
NSN: 5331-01-178-1262
FSC Code: 5331
MPN: CW2300CG

5331-00-494-2072 (CW2300C564)

NIIN: 00-494-2072
In stock
NSN: 5331-00-494-2072
FSC Code: 5331
MPN: CW2300C564

5331-00-494-2073 (CW2300C561)

NIIN: 00-494-2073
In stock
NSN: 5331-00-494-2073
FSC Code: 5331
MPN: CW2300C561