Part Number: 12H454 (National semiconductor) Part Number: 12H454CIV (Nationl) Part Number: 12H458CIV (Ne) Part Number: 12H458CIVF (Ne) Part Number: 12H46K41 (Ne) Part Number: 12H470K (Ne) Part Number: 12H470R (Ne) Part Number: 12H4802 (Plastic retainer) Part Number: 12H4804 (Plastic retainer) Part Number: 12H487-9 (Main fittings) Part Number: 12-H-49 (Meter) Part Number: 12H4K531 (Ne) Part Number: 12-H-50 (Component) Part Number: 12H5001-13 (Bracket)