NEOPRENE NYLON INSERTED 2 PLY RUBBER WASHER 25 PC PACK. 1/8 THK X 1 OD X 5/16" ID  100% MANUFACTURER IN THE USA.. 

SIZE:
Thickness: 1/8
Outside Diameter: 1"
Inside Diameter: 5/16"

Material features:
Neoprene rubber with square woven 7.0 ounce nylon fabric for durability in dynamic applications requiring extra strength
 Ozone,UV,oil resistant, chemical,sea water resistant

Material Specs:

Specs:
Durometer: 60 +/-5
PSI: 725 (MTS)
TEMP: -20F TO 170 F
Elongation:300%
Excellent stretch and tear resistance
FABRIC TYPE: NYLON

Need a custom size? let us know we can help, we can cut any size washer in many different materials rubbers & plastics.