Part Number: 10-4201-008 (Oval head stain.steel semi-tub.i) Part Number: 10-4201-009 (Oval head stain.steel semi-tub.i) Part Number: 10-4201-011 (Oval head stain.steel semi-tub.i) Part Number: 10420109 (Component) Part Number: 10420-11225S (Pressure altimeter) Part Number: 104201-126 (Component) Part Number: 10420-11798 (Encoding altimeter*) Part Number: 10420-11968E (Altimeter) Part Number: 104201-2 (Coupler, directional) Part Number: 10-42012-3P (Component) Part Number: 104201-247 (Component) Part Number: 10-42012-XX (No description) Part Number: 1042013 (Lens) Part Number: 104201-304 (No description)