NEOPRENE RUBBER WASHER 100 PC PACK.3/32 THK X 1-1/4" OD X 5/16" ID  100% MANUFACTURER IN THE USA.. 

SIZE:

Thickness: 3/32

Outside Diameter: 1-1/4"

Inside Diameter: 5/16"

Material features:

 Ozone,UV,oil resistant, chemical,sea water resistant

Material Specs:

Specs:
Durometer: 40 +/-5
PSI: 725 (MTS)
TEMP: -20F TO 170 F
Elongation:300%

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