PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4056Lamp,incandescent

Duro-Test Lighting · NSN 6240-01-360-4352 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-360-4352 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-360-4352. Primary manufacturer part number: 4056.
Features
  • Lamp,incandescent — FSC 6240
  • Base Style: MEDIUM SCREW
  • Wattage Rating: 40.000 WATTS
  • Bulb Style: F (FLAME)
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Rated Average Life: HOURS
  • Emitted Light Characteristic: COLORLESS
  • Filament Heavy Duty Service Rating: EXTENDED SERVICE
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-360-4352, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Duro-Test Lighting. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-360-4352
Primary Part Number4056
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerDuro-Test Lighting
StatusACTIVE
Base StyleMEDIUM SCREW
Wattage Rating40.000 WATTS
Bulb StyleF (FLAME)
Bulb Light Transmission CharacteristicTRANSPARENT
Rated Average LifeHOURS
Emitted Light CharacteristicCOLORLESS
Filament Heavy Duty Service RatingEXTENDED SERVICE
Average Life Rating in Hours8500.0 AND 9500.0
Voltage Rating120.000 VOLTS MINIMUM AND 125.000 VOLTS MAXIMUM
Filament DesignationC-9
Bulb DesignatorC-15
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-458-20114056 INTERCHANGEABLE
Thumbscrew
Roller Bearing Co of America, Inc Div Pic Design
5940-00-681-8183 INTERCHANGEABLE
Terminal,lug
6210-00-782-1726 INTERCHANGEABLE
Lens,light
5910-00-808-1972666096-132 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc
5905-01-041-276591J7R5 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5305-01-368-79614056 INTERCHANGEABLE
Screw,machine
DP Manufacturing Inc.
5340-01-392-60384056 INTERCHANGEABLE
Standoff,threaded,spacing
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4330-01-420-5235 INTERCHANGEABLE
Parts Kit,air Filter
4920-01-520-952458023-27 INTERCHANGEABLE
Bulb,incandescent,a
Technical Consumer Products, Inc.
6515-01-554-8671038050 INTERCHANGEABLE
Speculum,vaginal
Medgyn Products Inc
Cross-Reference Index
Part NumberManufacturer
4056 PRIMARY Duro-Test Lighting (USA)
4056 Duro-Test Corp (USA)
Related Parts
5305-00-458-2011INTERCHANGEABLE
THUMBSCREW
4056
5940-00-681-8183INTERCHANGEABLE
TERMINAL,LUG
6210-00-782-1726INTERCHANGEABLE
LENS,LIGHT
5910-00-808-1972INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
666096-132
5905-01-041-2765INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
91J7R5
5305-01-368-7961INTERCHANGEABLE
SCREW,MACHINE
4056
5340-01-392-6038INTERCHANGEABLE
STANDOFF,THREADED,SPACING
4056
4330-01-420-5235INTERCHANGEABLE
PARTS KIT,AIR FILTER
4920-01-520-9524INTERCHANGEABLE
BULB,INCANDESCENT,A
58023-27
6515-01-554-8671INTERCHANGEABLE
SPECULUM,VAGINAL
038050
9320-01-582-4606INTERCHANGEABLE
TAPE,ADHESIVE,RUBBER
9330-01-608-3259INTERCHANGEABLE
PLASTIC STRIP,PRESSURE SENSITIVE

Frequently Asked Questions

What is NSN 6240-01-360-4352?

NSN 6240-01-360-4352 is a Lamp,incandescent, manufactured by Duro-Test Lighting, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-360-4352?

NSN 6240-01-360-4352 has 2 cross-referenced part numbers: 4056 (Duro-Test Lighting), 4056 (Duro-Test Corp).

What NSN replaces 6240-01-360-4352?

There are 12 known substitutes for 6240-01-360-4352: 5305-00-458-2011, 5940-00-681-8183, 6210-00-782-1726 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4056?

Key specifications for 4056: Base Style: MEDIUM SCREW; Overall Length: 4.500 INCHES MAXIMUM IN; Wattage Rating: 40.000 WATTS; Bulb Style: F (FLAME). 12 total characteristics are documented in the Federal Logistics Information System.

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