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Technical Data Sheet
4C5491-A1 ✓ Verified by PartsTable
· COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The LAMP,INCANDESCENT is a the manufacturer industrial component. Key specifications include base_style: TELEPHONE SLIDE NUMBER ONE, bulb_style: T (TUBULAR), overall_length: 1.688 INCHES MAXIMUM IN, voltage_rating: 24.000 VOLTS NOMINAL, bulb_designator: T-2, rated_average_life: HOURS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-155-7837, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
4C5491-A1
NSN: 6240-00-155-7837
FSC: 6240
CAGE: 80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
base_styleTELEPHONE SLIDE NUMBER ONE
bulb_styleT (TUBULAR)
overall_length1.688 INCHES MAXIMUM IN
voltage_rating24.000 VOLTS NOMINAL
bulb_designatorT-2
rated_average_lifeHOURS
light_output_rating450.000 FOOTCANDLES NOMINAL SINGLE RATING
filament_designationC-2F
average_life_rating_in_hours5000.0
emitted_light_characteristicWHITE
current_rating_for_which_designed32.000 MILLIAMPERES MINIMUM AND 38.000 MILLIAMPERES MAXIMUM
filament_heavy_duty_service_ratingNOT RATED
NSN6240-00-155-7837
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LAMP,INCANDESCENT TITLE COMPONENT PN 4C5491-A1 MFR LAMP,INCANDESCENT
KEY FEATURES
BASE STYLE: TELEPHONE SLIDE NUMBER ONE
RATED AVERAGE LIFE: HOURS
BULB STYLE: T (TUBULAR)
LIGHT OUTPUT RATING: 450.000 FOOTCANDLES NOMINAL SINGLE RATING
EMITTED LIGHT CHARACTERISTIC: WHITE
FILAMENT HEAVY DUTY SERVICE RATING: NOT RATED
BULB LIGHT TRANSMISSION CHARACTERISTIC: TRANSPARENT
VOLTAGE RATING: 24.000 VOLTS NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
BASE STYLETELEPHONE SLIDE NUMBER ONE
RATED AVERAGE LIFEHOURS
BULB STYLET (TUBULAR)
LIGHT OUTPUT RATING450.000 FOOTCANDLES NOMINAL SINGLE RATING
EMITTED LIGHT CHARACTERISTICWHITE
FILAMENT HEAVY DUTY SERVICE RATINGNOT RATED
BULB LIGHT TRANSMISSION CHARACTERISTICTRANSPARENT
VOLTAGE RATING24.000 VOLTS NOMINAL
BULB DESIGNATORT-2
AVERAGE LIFE RATING IN HOURS5000.0
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
8811158-2Interchangeable
interchangeable cross-reference
interchangeable
352250015827Interchangeable
interchangeable cross-reference
interchangeable
328Interchangeable
interchangeable cross-reference
interchangeable
24EInterchangeable
interchangeable cross-reference
interchangeable
WER 1/2Interchangeable
interchangeable cross-reference
interchangeable
C78-393Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4C5491-A1?
4C5491-A1 is a LAMP,INCANDESCENT.
What parts can replace 4C5491-A1?
There are 19 known substitutes for 4C5491-A1: 8811158-2, 352250015827, 328 and 16 more. Substitute compatibility should be verified for your specific system.
Is 4C5491-A1 still available?
4C5491-A1 is currently cancelled.
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