NSN: 6240-00-536-1851

Technical Characteristics

• Current Rating For Which Designed

  0.320 amperes minimum and 0.348 amperes maximum

• Average Life Rating In Hours

  1000.0

• Emitted Light Characteristic

  red

• Features Provided

  filament shielding and heat resistant glass

• Bulb Light Transmission Characteristic

  translucent

• Rated Average Life

  hours

• Bulb Designator

  a-21

• Overall Length

  4.438 inches nominal

• Wattage Rating

  40.000 watts

• Base Style

  medium screw

• Voltage Rating

  115.000 volts minimum and 125.000 volts maximum

• Burning Position

  any acceptable

• Filament Designation

  c-9

• End Item Identification

  radar set lt air traffic control (17m jul83) (an/tps-63)

• Bulb Style

  a (arbitrary designation)

• Filament Heavy Duty Service Rating

  not rated