PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

EFRLamp,incandescent

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 6240-00-538-0920 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-538-0920 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-538-0920. Primary manufacturer part number: EFR.
Features
  • Lamp,incandescent — FSC 6240
  • Burning Position: BASE DOWN TO HORIZONTAL
  • Rated Average Life: HOURS
  • Bulb Style: MR (ARBITARY DESIGNATION FOR LAMP WITH INTEGRAL REFLECTOR)
  • Emitted Light Characteristic: WHITE
  • Wattage Rating: 150.000 WATTS
  • Voltage Rating: 15.000 VOLTS NOMINAL
  • Light Intensity Distribution Feature: DICHROIC REFLECTOR
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-538-0920, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-538-0920
Primary Part NumberEFR
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusCANCELLED
Burning PositionBASE DOWN TO HORIZONTAL
Rated Average LifeHOURS
Bulb StyleMR (ARBITARY DESIGNATION FOR LAMP WITH INTEGRAL REFLECTOR)
Emitted Light CharacteristicWHITE
Wattage Rating150.000 WATTS
Voltage Rating15.000 VOLTS NOMINAL
Light Intensity Distribution FeatureDICHROIC REFLECTOR
Base Style2-PIN
Bulb DesignatorMR-16
Bulb Light Transmission CharacteristicTRANSPARENT
Specification/standard Data80204-EFR MANUFACTURERS STANDARD
Filament Heavy Duty Service RatingNOT RATED
Color Temp in Deg Kelvin3350.0
Average Life Rating in Hours50.0
Features ProvidedHEAT RESISTANT GLASS
Current Rating for Which Designed10.000 AMPERES NOMINAL
Filament DesignationC-8
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5330-00-053-53876243 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
5815-00-125-83789203 INTERCHANGEABLE
Guide,selector
Telemechanics Inc
5331-00-165-1961AS3209-243 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5930-00-258-48676243 INTERCHANGEABLE
Switch,lever
Standard Gribsby Inc
5950-00-270-1267SMB684598-1 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5330-00-362-30867351152 INTERCHANGEABLE
Gasket
U S Army Tank Automotive Command Amsta-Im-Mm
5977-00-364-075960521X INTERCHANGEABLE
Holder,electrical Contact Brush
Reliance Electric Company Dba Reliance & Dodge Brands
4310-00-383-49986243 INTERCHANGEABLE
Parts Kit
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
4810-00-384-3604220610PC7 INTERCHANGEABLE
Seat,valve
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5945-00-410-1881HP1141113-1 INTERCHANGEABLE
Solenoid,electrical
Tactair Fluid Controls Inc
Cross-Reference Index
Part NumberManufacturer
EFR Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
920-3 Olympus America Inc (USA)
6243 Olympus America Inc (USA)
JCM15-150FP Olympus America Inc (USA)
6240PL0891004 Jednolity Indeks Materialowy - Uniform Material Index (POL)
6423 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
EFR PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
6423XHP Philips Lightingdiv of Philips Electronics Aust (AUS)
JCM15-150FP Olympus America Inc (USA)
EFR Gte Products Corp Sylvania Miniature Lighting Div (USA)
920-3 Olympus America Inc (USA)
58102 Olympus America Inc (USA)
58102 Olympus America Inc (USA)
EFR General Electric Co Photo Lamp Dept (USA)
Related Parts
5330-00-053-5387INTERCHANGEABLE
GASKET
6243
5815-00-125-8378INTERCHANGEABLE
GUIDE,SELECTOR
9203
5331-00-165-1961INTERCHANGEABLE
O-RING
AS3209-243
5930-00-258-4867INTERCHANGEABLE
SWITCH,LEVER
6243
5950-00-270-1267INTERCHANGEABLE
COIL,RADIO FREQUENCY
SMB684598-1
5330-00-362-3086INTERCHANGEABLE
GASKET
7351152
5977-00-364-0759INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
60521X
4310-00-383-4998INTERCHANGEABLE
PARTS KIT
6243
4810-00-384-3604INTERCHANGEABLE
SEAT,VALVE
220610PC7
5945-00-410-1881INTERCHANGEABLE
SOLENOID,ELECTRICAL
HP1141113-1
9540-00-414-3292INTERCHANGEABLE
BEAM,STRUCTURAL
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF

Frequently Asked Questions

What is NSN 6240-00-538-0920?

NSN 6240-00-538-0920 is a Lamp,incandescent, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-538-0920?

NSN 6240-00-538-0920 has 14 cross-referenced part numbers: EFR (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), 920-3 (Olympus America Inc), 6243 (Olympus America Inc), JCM15-150FP (Olympus America Inc), 6240PL0891004 (Jednolity Indeks Materialowy - Uniform Material Index) and 9 more.

What NSN replaces 6240-00-538-0920?

There are 12 known substitutes for 6240-00-538-0920: 5330-00-053-5387, 5815-00-125-8378, 5331-00-165-1961 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of EFR?

Key specifications for EFR: Burning Position: BASE DOWN TO HORIZONTAL; Rated Average Life: HOURS; Bulb Style: MR (ARBITARY DESIGNATION FOR LAMP WITH INTEGRAL REFLECTOR); Emitted Light Characteristic: WHITE. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-538-0920 still in active supply?

NSN 6240-00-538-0920 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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