NSN: 6240-00-143-3051

Technical Characteristics

• Light Center Length

  2.375 inches nominal

• Bulb Style

  a (arbitrary designation)

• Filament Heavy Duty Service Rating

  not rated

• Average Life Rating In Hours

  2000.0

• Overall Length

  4.375 inches maximum

• Rated Average Life

  hours

• Emitted Light Characteristic

  colorless

• Bulb Designator

  a-21

• Light Output Rating

  380.000 lumens nominal single rating

• Wattage Rating

  40.000 watts

• Base Style

  medium screw

• Bulb Light Transmission Characteristic

  transparent

• Burning Position

  base down to horizontal

• Voltage Rating

  125.000 volts nominal

• Current Rating For Which Designed

  0.320 amperes nominal