PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-A-615638Lamp,incandescent

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 6240-00-269-0972 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-269-0972 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-269-0972. Primary manufacturer part number: SM-A-615638.
Features
  • Lamp,incandescent — FSC 6240
  • Base Style: CANDELABRA SCREW
  • Emitted Light Characteristic: WHITE
  • Current Rating for Which Designed: 0.050 AMPERES NOMINAL
  • Wattage Rating: 6.000 WATTS
  • Light Output Rating: 42.000 LUMENS NOMINAL SINGLE RATING
  • Rated Average Life: HOURS
  • Filament Heavy Duty Service Rating: NOT RATED
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-269-0972, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-269-0972
Primary Part NumberSM-A-615638
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Base StyleCANDELABRA SCREW
Emitted Light CharacteristicWHITE
Current Rating for Which Designed0.050 AMPERES NOMINAL
Wattage Rating6.000 WATTS
Light Output Rating42.000 LUMENS NOMINAL SINGLE RATING
Rated Average LifeHOURS
Filament Heavy Duty Service RatingNOT RATED
Bulb DesignatorT-4 1/2
Voltage Rating120.000 VOLTS NOMINAL
Average Life Rating in Hours1500.0
Filament DesignationC-7A A
Bulb Light Transmission CharacteristicTRANSPARENT
Bulb StyleT (TUBULAR)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5940-00-248-3331 INTERCHANGEABLE
Terminal,lug
9150-00-985-7031 INTERCHANGEABLE
Lubricating Oil,aircraft Turbine
6520-01-003-7703999-4878 INTERCHANGEABLE
Bur,dental,excavating
Henry Schein, Inc.
5930-01-442-7941 INTERCHANGEABLE
Adapter,switch Actuator
Cross-Reference Index
Part NumberManufacturer
SM-A-615638 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
2108043 L3harris Technologies, Inc. (USA)
6T4 1-2 1-120 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
LA6 Ampex Systems Corp (USA)
WL101-95T Federal Specifications Promulgated by General Services Administration Washington DC (USA)
6T4 1/2/1-115-125V Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
6T4 1/2/1-120V Gte Products Corp Sylvania Miniature Lighting Div (USA)
6T4-1-2-1-120V General Electric Company Dba Ge (USA)
6T4 1/2 115-125V Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
6T4 1-2-1-120V Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
8108435 Us Army Aviation and Missile Command (USA)
Related Parts
5940-00-248-3331INTERCHANGEABLE
TERMINAL,LUG
9150-00-985-7031INTERCHANGEABLE
LUBRICATING OIL,AIRCRAFT TURBINE
6520-01-003-7703INTERCHANGEABLE
BUR,DENTAL,EXCAVATING
999-4878
5930-01-442-7941INTERCHANGEABLE
ADAPTER,SWITCH ACTUATOR

Frequently Asked Questions

What is NSN 6240-00-269-0972?

NSN 6240-00-269-0972 is a Lamp,incandescent, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-269-0972?

NSN 6240-00-269-0972 has 11 cross-referenced part numbers: SM-A-615638 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 2108043 (L3harris Technologies, Inc.), 6T4 1-2 1-120 (American National Standards Institute Incorporated Dba American National Standards Institute), LA6 (Ampex Systems Corp), WL101-95T (Federal Specifications Promulgated by General Services Administration Washington DC) and 6 more.

What NSN replaces 6240-00-269-0972?

There are 4 known substitutes for 6240-00-269-0972: 5940-00-248-3331, 9150-00-985-7031, 6520-01-003-7703 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-A-615638?

Key specifications for SM-A-615638: Base Style: CANDELABRA SCREW; Emitted Light Characteristic: WHITE; Current Rating for Which Designed: 0.050 AMPERES NOMINAL; Wattage Rating: 6.000 WATTS. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-269-0972 still in active supply?

NSN 6240-00-269-0972 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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