Part Number: 0A78601 (Hitj) Part Number: 0A78603 (Hitachi travelstar z5k320 320 gb) Part Number: 0A79646 (Hitachi travelstar z7k320 320 gb) Part Number: 0A79675-2 (Component) Part Number: 0A800-012 (Bearing) Part Number: 0A800-12 (Bearing) Part Number: 0A800-3 (Bearing) Part Number: 0A802-12 (Bearing) Part Number: 0A802-21 (Bearing) Part Number: 0A802-3 (Bearing) Part Number: 0A805300-12 (Squib) Part Number: 0A805300-4 (Unit) Part Number: 0A805300-43 (Squib) Part Number: 0A805300-44 (Switch)