For For corrosion protection of Shafts and running gear.
Shaft Diameter (ID): 4″
Length: 3-3/4″
Outside Diameter (OD): 5-5/8″
EMP Zinc anodes conform to Mil-Spec: MIL-A-18001K

also crosses with:
Canada Metals CMX17
Technoseal 00526USA
Camp X-17
Reliance MDX-17