PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-50T12Lamp,incandescent

Zf Industrieantriebe Witten Gmbh · NSN 6240-00-577-8455 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-577-8455 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-577-8455. Primary manufacturer part number: 50-50T12.
Features
  • Lamp,incandescent — FSC 6240
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Light Center Length: 3.000 INCHES NOMINAL IN
  • Bulb Style: T (TUBULAR)
  • Burning Position: BASE DOWN
  • Emitted Light Characteristic: WHITE
  • Base Style: THREE CONTACT MEDIUM SCREW
  • Wattage Rating: 50.000 WATTS
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-577-8455, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Zf Industrieantriebe Witten Gmbh. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 11 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
NSN6240-00-577-8455
Primary Part Number50-50T12
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerZf Industrieantriebe Witten Gmbh
StatusACTIVE
Bulb Light Transmission CharacteristicTRANSPARENT
Light Center Length3.000 INCHES NOMINAL IN
Bulb StyleT (TUBULAR)
Burning PositionBASE DOWN
Emitted Light CharacteristicWHITE
Base StyleTHREE CONTACT MEDIUM SCREW
Wattage Rating50.000 WATTS
Voltage Rating115.000 VOLTS NOMINAL
Filament DesignationC-5/C-9
Filament Heavy Duty Service RatingNOT RATED
Light Output Rating375.000 LUMENS NOMINAL SINGLE RATING
Rated Average LifeHOURS
Average Life Rating in Hours750.0
Bulb DesignatorT-12
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6145-00-046-1810AA-2070 INTERCHANGEABLE
Cable,radio Frequency
Times Microwave Systems, Inc Dba Times Microwave Systems Inc Div Times Microwave Systems
5998-00-308-0249 INTERCHANGEABLE
Circuit Card Assembly
3120-00-343-779316726 INTERCHANGEABLE
Bearing,sleeve
Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center
2940-00-382-8003L21 INTERCHANGEABLE
Line
Honeywell International Inc Dba Honeywell Div Consumer Products Group
5306-00-660-2091375089 INTERCHANGEABLE
Bolt,externally Relieved Body
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
5310-00-685-1744119FW428 INTERCHANGEABLE
Nut,self-Locking,extended Washer
Sps Technologies, Llc Dba PB Fasteners
6625-00-888-1532 INTERCHANGEABLE
Rack,aluminum
5950-01-011-735513102 INTERCHANGEABLE
Transformer,power
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
5120-01-089-322316726 INTERCHANGEABLE
Wrench,spanner
Mine Safety Appliances Company
5360-01-223-134816726 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
50-50T12 Zf Industrieantriebe Witten Gmbh (DEU)
50-50T12-115V Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
6240PL1338029 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS15545-2 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
A-A-2070 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-50441 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
16726 General Electric Company Dba Ge (USA)
50-50T12-115V Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
MS17780-14 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
9-S-4639-L TYRSS-S Naval Ship Systems Command (USA)
A50441-1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
50-50T12 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
37508-9 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
7N2038 Caterpillar Inc Div Caterpillar Defense (USA)
9-S-4639-L TYRSS-S Naval Inventory Control Point Mechanicsburg (USA)
50-50T12-115V-9 -S4639L Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
6145-00-046-1810INTERCHANGEABLE
CABLE,RADIO FREQUENCY
AA-2070
5998-00-308-0249INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3120-00-343-7793INTERCHANGEABLE
BEARING,SLEEVE
16726
2940-00-382-8003INTERCHANGEABLE
LINE
L21
5306-00-660-2091INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
375089
5310-00-685-1744INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
119FW428
6625-00-888-1532INTERCHANGEABLE
RACK,ALUMINUM
5950-01-011-7355INTERCHANGEABLE
TRANSFORMER,POWER
13102
5120-01-089-3223INTERCHANGEABLE
WRENCH,SPANNER
16726
5360-01-223-1348INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
16726
5360-01-287-5299INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
4130-01-304-3221INTERCHANGEABLE
COOLER UNIT,AIR

Frequently Asked Questions

What is NSN 6240-00-577-8455?

NSN 6240-00-577-8455 is a Lamp,incandescent, manufactured by Zf Industrieantriebe Witten Gmbh, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-577-8455?

NSN 6240-00-577-8455 has 16 cross-referenced part numbers: 50-50T12 (Zf Industrieantriebe Witten Gmbh), 50-50T12-115V (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), 6240PL1338029 (Jednolity Indeks Materialowy - Uniform Material Index), MS15545-2 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), A-A-2070 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 11 more.

What NSN replaces 6240-00-577-8455?

There are 12 known substitutes for 6240-00-577-8455: 6145-00-046-1810, 5998-00-308-0249, 3120-00-343-7793 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-50T12?

Key specifications for 50-50T12: Bulb Light Transmission Characteristic: TRANSPARENT; Light Center Length: 3.000 INCHES NOMINAL IN; Bulb Style: T (TUBULAR); Burning Position: BASE DOWN. 15 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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