This is a A-40M7066 Ring, External Snap, 5/Pack PN: 40M7066Main Description As Following : A-40M7066 Ring, External Snap, 5/Pack PN: 40M7066 Found in Section & Models : Miscellaneous > Miscellaneous, Hitachi COMPACT EXCAVATOR: ZAXIS17U-5N, Hitachi COMPACT EXCAVATOR: ZAXIS26U-5N, Hitachi EXCAVATOR: ZAXIS160LC-6N, Hitachi EXCAVATOR: ZAXIS180LC-6N, Hitachi EXCAVATOR: ZAXIS245USLC-6N, Hitachi EXCAVATOR: ZAXIS250LC-6N, Hitachi EXCAVATOR: ZAXIS350LC-6N, Hitachi EXCAVATOR: ZAXIS380LC-6N, Hitachi EXCAVATOR: ZAXIS470LC-6, John Deere BACKHOE: 310D, John Deere BACKHOE: 310E, John Deere BACKHOE: 310G, John Deere BACKHOE: 310J, John Deere BACKHOE: 310K, John Deere BACKHOE: 310K EP, John Deere BACKHOE: 310L, John Deere BACKHOE: 310L EP, John Deere BACKHOE: 310SE, John Deere BACKHOE: 310SG, John Deere BACKHOE: 310SJ Associated Items : New Also A-JD-S-CTM3, A-SMJD62, A-JD-O-OMR71860, A-SMJD59, A-JD-O-OMR71860 And : Snap Ring Has Many Applications, Please Check Dimensions Before Ordering. Package Of 5 / Priced Per Piece Diameter: Groove Dia.: 2.047" / Groove Width: .085" Shaft Diameter: 2.165" Width: .079"