250R40-4
Electric Lamps
LAMP,INCANDESCENT
250R40-4
General Dynamics C4 Systems Inc.
LAMP,INCANDESCENT
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Technical Characteristics
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Burning Position
any acceptable
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Filament Designation
c-9
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Wattage Rating
250.000 watts
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Bulb Style
r (reflector)
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Filament Heavy Duty Service Rating
not rated
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Overall Length
7.250 inches minimum and 7.375 inches maximum
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Bulb Light Transmission Characteristic
translucent
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Light Intensity Distribution Feature
inside frosted and reflective bowl
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Emitted Light Characteristic
infrared
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Rated Average Life
hours
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Average Life Rating In Hours
5000.0
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Base Style
medium screw skirted
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Bulb Designator
r-40
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Voltage Rating
115.000 volts minimum and 125.000 volts maximum
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Current Rating For Which Designed
0.460 amperes minimum and 0.500 amperes maximum
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End Item Identification
galley equipment & food service; ticonderoga class cg (47); wasp class lhd; joint surveillance sys (jss)/region ops ctrl center (rocc); nimitz class cvn; forrestal class cv; sirius class t-afs 8; whidbey island class lsd; fms; aircraft, b-1b