Mirro Pressure Cooker Model “592 M”. Parts List for Mirro Matic “592 M” Pressure Cooker. Mirro® parts for the Mirro® model “592 M” may be ordered on-line using the links below. Mirro 9898 Pressure Regulator 9898$17.95 Mirro 9894 Vent Tube 9894$9.95 Mirro 9732 Fuse Over Pressure Plug 9732Regular price: $2.99Sale price: $2.00 Mirro 9890 Gasket M9890$10.49 Mirro 9709 Lift Pin S-9709$5.99 6 3/4 in. dia Canning Rack 341$7.49