Read the models below and this message carefully to ensure proper ordering. This cutter has metal pins on the underside (see secondary photo) that connect to the white plastic cutter support. If yours has plastic bars on the underside of the cutter that snap onto the white cutter support, this will not work with your shaver.
Fits American "SYSTEM 1-2-3" model numbers: 3010, 3011, 3012, 3025, 3500, 3510, 3511, 3512, 3525, 3550  Type numbers: 5579, 5569, 5569u, 5567u, 5567, 5666, 5564, 5564u, 5479, 5470, 5469, 5424, 5419
Fits Linear model numbers 240, 260, 270 (with metal pins)
Fits type numbers 5213, 5215, 5235, 5533(with metal pins)
Item is bulk stock