Mil-Spec Rubber » Military Rubber Specification, Military Grade Rubber, Mil-Spec

As technology changes so does our designs and manufacturing methods for producing military grade / mil-spec rubber o- rings, seals, tubes and other molded rubber products. Columbia offers many types of seals and sealing devices that meet the numerous military rubber specifications, ensuring our compounds will withstand the aggressive environments they will endure. Seal performance is particularly affected by these drastic temperature variations. Columbia's military compounds can be used in applications with continuous service temperatures as low as -60ºF and as high as 401ºF. See chart below for military specifications and corresponding Elastomer's.

military grade rubber
Mil-spec Rubber Industry

Military Specification O-Rings and Seals

Mil-Spec Rubber Base Compound
Sealing
General Application
Temperature Range °F
Mil-Spec Compound New Specification  
Specification
Elastomer
Static
Dynamic
Fluid or Application Type
Min
Max
Compound
REPLACED BY MATERIAL SPEC.
Comments
MILG22050
ETHYLENE PROPYLENE (EPR)
N.A.
N.A.
hot air, hot water, steam & monoethanolamine
-40
230
5714-65
N.A.
N.A
MILP25732
NITRILE
YES
YES
MIL-H-5606 &
MIL-H-83282
-65
275
4067-70
N.A.
N.A
MILP5315
NITRILE
N.A.
N.A.
aircraft fuels
-65
180
0457-60
AMSP5315
N.A
MILP83461
NITRILE
YES
YES
AMS 3020 &
MIL-H-83282
-65
275
4367-70
AMSP83461
N.A
MILR2765
NITRILE
N.A.
N.A
air petroleum oil
& fuel
-20
158
2159-50
N.A.
N.A
MILR6855
CHLOROPRENE
(NEOPRENE)
N.A
N.A
petroleum oil &
weather and ozone
-67
212
0376-60
MILR6855
N.A
MILR83248
FLUOROCARBON
(FLUOREL/VITON®)
YES
YES
aircraft fuels & lubricants
5
400
9009-75
AMS7276
class 1 tolerances required, may need special tool and/or processing
MILR83485
FLUOROCARBON
(FLUOREL/VITON®)
YES
YES
aircraft fuels & lubricants
-25
400
9006-75
AMSR83485
base elastomer is Viton®
AMS3215
NITRILE
N.A.
N.A
aircraft fuels
-15
212
4200-70
N.A.
N.A.
AMS3302
SILICONE
N.A.
N.A
petroleum-base lube oil & weather resistant
-85
401
1235-50
N.A.
N.A.
AMS3304
SILICONE
N.A.
N.A
dummy loads & petroleum-base lube oil
-85
401
1235-70
N.A.
standard o ring size
AMS7276
FLUOROCARBON
(FLUOREL/VITON®)
N.A.
N.A
aircraft fuels, lubricants & hydraulic fluids
-20
400
9009-75
N.A.
rated for higher temp. and lower compression set than MS9387 or AS3084
AMSP5315
NITRILE
YES
YES
aircraft fuels
-65
180
0457-60
MILP5315
non-standard o-ring size
AMSP5510
NITRILE
N.A.
N.A.
hydraulic fluid & pneumatic systems
-65
160
4081-90
N.A.
hydraulic fluid & excellent low temp. flexibility
AMSP83461
NITRILE
YES
YES
AMS 3020 &
MIL-H-83282
-65
275
4367-70
MILP83461
N.A.
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