This is a Bearing used for the following OS Max Engines: - 12 CZ-2, 12 CZ-R, 12 CZ-Z, 12 CV - 25 SF, 25 SF ABC - 28 F-H ABC - 32 F, 32 F-H, 32 F-H w/coil, 32 F-H w/recoil - FT-120II - FT-160 (front cam shaft bearing) - FT-240 - FF-240 - FT-300 - FF-320 INCLUDES: One Bearing SPECS: Inner Diameter: 9mm Outer Diameter: 17mm Width: 5mm Bearing Markings & details: Thailand NMB 5/19/93 ir/jl