PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MP400/C/BU/BDLamp,metal Halide

Gte Products Corp Sylvania Miniature Lighting Div · NSN 6240-01-344-6994 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-344-6994 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-344-6994. Primary manufacturer part number: MP400/C/BU/BD.
Features
  • Lamp,metal Halide — FSC 6240
  • Base Style: MOGUL SCREW
  • Bulb Designator: BT-37
  • Light Center Length: 7.000 INCHES NOMINAL IN
  • Wattage Rating: 400.000 WATTS
  • Emitted Light Characteristic: WHITE
  • Bulb Style: BT (BULGED TUBULAR)
  • Bulb Light Transmission Characteristic: TRANSLUCENT
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,metal Halide, cataloged under National Stock Number 6240-01-344-6994, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Gte Products Corp Sylvania Miniature Lighting Div. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-01-344-6994
Primary Part NumberMP400/C/BU/BD
Item NameLamp,metal Halide
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerGte Products Corp Sylvania Miniature Lighting Div
StatusACTIVE
Base StyleMOGUL SCREW
Bulb DesignatorBT-37
Light Center Length7.000 INCHES NOMINAL IN
Wattage Rating400.000 WATTS
Emitted Light CharacteristicWHITE
Bulb StyleBT (BULGED TUBULAR)
Bulb Light Transmission CharacteristicTRANSLUCENT
Rated Average LifeHOURS
Average Life Rating in Hours20000.0
Light Output Rating28500.000 LUMENS NOMINAL SINGLE RATING
Criticality Code JustificationFEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5998-01-418-442766244 INTERCHANGEABLE
Circuit Card Assembly
Viavi Solutionsllc
2530-01-460-5032 INTERCHANGEABLE
Car,track
5120-01-516-633964701 INTERCHANGEABLE
Wrench,socket
Textron Lycoming Inc Williamsport Plant
Cross-Reference Index
Part NumberManufacturer
MP400/C/BU/BD Gte Products Corp Sylvania Miniature Lighting Div (USA)
MP400/C/BU-ONLY Gte Products Corp Sylvania Miniature Lighting Div (USA)
MP400/C/BU-ONLY Osram Sylvania Inc. (USA)
64701 Gte Products Corp Sylvania Miniature Lighting Div (USA)
Related Parts
5998-01-418-4427INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
66244
2530-01-460-5032INTERCHANGEABLE
CAR,TRACK
5120-01-516-6339INTERCHANGEABLE
WRENCH,SOCKET
64701

Frequently Asked Questions

What is NSN 6240-01-344-6994?

NSN 6240-01-344-6994 is a Lamp,metal Halide, manufactured by Gte Products Corp Sylvania Miniature Lighting Div, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-344-6994?

NSN 6240-01-344-6994 has 4 cross-referenced part numbers: MP400/C/BU/BD (Gte Products Corp Sylvania Miniature Lighting Div), MP400/C/BU-ONLY (Gte Products Corp Sylvania Miniature Lighting Div), MP400/C/BU-ONLY (Osram Sylvania Inc.), 64701 (Gte Products Corp Sylvania Miniature Lighting Div).

What NSN replaces 6240-01-344-6994?

There are 3 known substitutes for 6240-01-344-6994: 5998-01-418-4427, 2530-01-460-5032, 5120-01-516-6339. Verify interchangeability with system specifications before substitution.

What are the specifications of MP400/C/BU/BD?

Key specifications for MP400/C/BU/BD: Base Style: MOGUL SCREW; Bulb Designator: BT-37; Light Center Length: 7.000 INCHES NOMINAL IN; Wattage Rating: 400.000 WATTS. 13 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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