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Technical Data Sheet
48B-1 ✓ 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: 1.687 INCHES MAXIMUM IN, voltage_rating: 18.000 VOLTS NOMINAL, wattage_rating: 0.720 WATTS, bulb_designator: T-2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-153-6517, 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
48B-1
NSN: 6240-00-153-6517
FSC: 6240
CAGE: 08108 — LAMP INDUSTRY FOR USE WITH INDUSTRY DESIGNATIONS AND ABBREVIATIONS FOR LAMPS
SPECIFICATIONS
base_styleTELEPHONE SLIDE NUMBER ONE
bulb_styleT (TUBULAR)
overall_length1.687 INCHES MAXIMUM IN
voltage_rating18.000 VOLTS NOMINAL
wattage_rating0.720 WATTS
bulb_designatorT-2
special_features840.END FOOT CANDLES
features_providedFILAMENT SHIELDING AND HEAT RESISTANT GLASS
rated_average_lifeNOT RATED
light_center_length1.690 INCHES NOMINAL IN
light_output_rating0.150 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
filament_designationC-21
NSN6240-00-153-6517
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LAMP,INCANDESCENT TITLE COMPONENT PN 48B-1 MFR LAMP,INCANDESCENT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
7775Interchangeable
interchangeable cross-reference
interchangeable
48BInterchangeable
interchangeable cross-reference
interchangeable
MILC15612Interchangeable
interchangeable cross-reference
interchangeable
B55-1-1961B48Interchangeable
interchangeable cross-reference
interchangeable
B48Interchangeable
interchangeable cross-reference
interchangeable
E1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 48B-1?
48B-1 is a LAMP,INCANDESCENT.
What parts can replace 48B-1?
There are 17 known substitutes for 48B-1: 7775, 48B, MILC15612 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 48B-1?
48B-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6240-00-153-6517. This indicates validated use in U.S. government and defense supply chains.
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