Part Number: 142AL (No description) Part Number: 142ALPS-3132 (Valve) Part Number: 142AM (Servo altimeter, 0-50, 000 ft.) Part Number: 142AMINIATUREPHONEJACK (Switchcra) Part Number: 142AMPC (Altimeter,servoed) Part Number: 142AMPC1 (Altimeter,servoed) Part Number: 142APLS-3132T (Valve) Part Number: 142APR (No description) Part Number: 142AS162 (No description) Part Number: 142AS207 (Component) Part Number: 142AS300 (Hold module) Part Number: 142AS301 (Bandpass filter mod) Part Number: 142AS303 (Circuit card) Part Number: 142AS304 (Delay module)