So I unboxed my Cerberus pump kit last month but couldn't find the wave spring or washer. Perusing AO I ordered Smalley wave springs, found a couple .220 spacers, and have the dimensions of the washer from HaveBlue ("the black bumper is 1/16" thick, 3/4" OD and approximately 0.465" ID") knowing I can always trim a blue bumper.
However, after talking to ManiacMechanic yesterday I learned that the black washer/bumper is more a hard plastic. A few searches brought up dozens of results but none specific as to the type of polymer used for the pump washer.
- Does anyone know what specific material AGD used for it?
- Has anyone ever found a replacement truer to the AGD-spec material?