This is a A-CH10062 Gasket, Injector PN: CH10062Main Description As Following : A-CH10062 Gasket, Injector PN: CH10062 Found in Section & Models : Engine Parts > Fuel System Parts, John Deere TRACTOR, COMPACT: 850 Associated Items : New Also A-JD-O-OMR72588, A-SMJD47 And : Inside Diameter: .971" Outside Diameter: 1.165" Thickness: .020"