Mirro Pressure Cooker Model “M-0534-50”. Parts List for Mirro Matic “M-0534-50” Pressure Cooker. Mirro® parts for the Mirro® model “M-0534-50” may be ordered on-line using the links below. Mirro 9885 Gasket 9885$11.99 Mirro 9732 Fuse Over Pressure Plug 9732Regular price: $2.99Sale price: $2.00 Mirro 9709 Lift Pin S-9709$5.99 6 3/4 in. dia Canning Rack 341$7.49