This is a A-24M7226 Washer, 13 MM X 35MM X 5MM PN: 24M7226Main Description As Following : A-24M7226 Washer, 13 MM X 35MM X 5MM PN: 24M7226 Found in Section & Models : Miscellaneous > Miscellaneous, (Miscellaneous) (UNDEFINED): SEVERAL Associated Items : New Also This is An Aftermarket Product And : Inside Diameter: .512" (13MM) Outside Diameter: 1.378" (35MM) Thickness: .197" (5MM)