PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M250/ULamp,metal Halide

Osram Sylvania Inc · NSN 6240-01-158-6599 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-158-6599 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-158-6599. Primary manufacturer part number: M250/U.
Features
  • Lamp,metal Halide — FSC 6240
  • Bulb Designator: BT28
  • Light Output Rating: 14000.000 LUMENS NOMINAL FIRST RATING
  • Light Output Rating: 20500.000 LUMENS NOMINAL SECOND RATING
  • Average Life Rating in Hours: 10000.0
  • Wattage Rating: 250.000 WATTS
  • Rated Average Life: HOURS
  • Bulb Style: BT (BULGED TUBULAR)
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,metal Halide, cataloged under National Stock Number 6240-01-158-6599, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Osram Sylvania Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-01-158-6599
Primary Part NumberM250/U
Item NameLamp,metal Halide
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerOsram Sylvania Inc
StatusCANCELLED
Bulb DesignatorBT28
Light Output Rating14000.000 LUMENS NOMINAL FIRST RATING
Light Output Rating20500.000 LUMENS NOMINAL SECOND RATING
Average Life Rating in Hours10000.0
Wattage Rating250.000 WATTS
Rated Average LifeHOURS
Bulb StyleBT (BULGED TUBULAR)
Base StyleMOGUL SCREW
Bulb Light Transmission CharacteristicTRANSPARENT
Emitted Light CharacteristicCOLORLESS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5930-00-104-1442 INTERCHANGEABLE
Switch,pressure
5845-00-406-184763052 INTERCHANGEABLE
Latch Striker
L3harris Technologies, Inc.
2520-00-928-757766947 INTERCHANGEABLE
Spin Assembly
Tractech Inc
5330-01-035-9418 INTERCHANGEABLE
Seal,plain Encased
6240-01-160-4368M58PG-R250/VBU INTERCHANGEABLE
Lamp,mercury Vapor
Graybar Electric Company, Inc.
6680-01-279-753763052 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
6150-01-707-777663052 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Helukabel Usa Inc
Cross-Reference Index
Part NumberManufacturer
M250/U Osram Sylvania Inc (USA)
63052 Venture Lighting Intl (USA)
MH250/U Venture Lighting Intl (USA)
63052 Venture Lighting International, Inc. Dba Venture Lighting Intl (USA)
64457 Osram Sylvania Inc (USA)
A-A-1758-3 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
M58PG-R250/U Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
M58PG-R250/U General Electric Company Dba Ge (USA)
MH250/U Venture Lighting International, Inc. Dba Venture Lighting Intl (USA)
Related Parts
5930-00-104-1442INTERCHANGEABLE
SWITCH,PRESSURE
5845-00-406-1847INTERCHANGEABLE
LATCH STRIKER
63052
2520-00-928-7577INTERCHANGEABLE
SPIN ASSEMBLY
66947
5330-01-035-9418INTERCHANGEABLE
SEAL,PLAIN ENCASED
6240-01-160-4368INTERCHANGEABLE
LAMP,MERCURY VAPOR
M58PG-R250/VBU
6680-01-279-7537INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
63052
6150-01-707-7776INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
63052

Frequently Asked Questions

What is NSN 6240-01-158-6599?

NSN 6240-01-158-6599 is a Lamp,metal Halide, manufactured by Osram Sylvania Inc, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-01-158-6599?

NSN 6240-01-158-6599 has 9 cross-referenced part numbers: M250/U (Osram Sylvania Inc), 63052 (Venture Lighting Intl), MH250/U (Venture Lighting Intl), 63052 (Venture Lighting International, Inc. Dba Venture Lighting Intl), 64457 (Osram Sylvania Inc) and 4 more.

What NSN replaces 6240-01-158-6599?

There are 7 known substitutes for 6240-01-158-6599: 5930-00-104-1442, 5845-00-406-1847, 2520-00-928-7577 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M250/U?

Key specifications for M250/U: Bulb Designator: BT28; Light Output Rating: 14000.000 LUMENS NOMINAL FIRST RATING; Light Output Rating: 20500.000 LUMENS NOMINAL SECOND RATING; Average Life Rating in Hours: 10000.0. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-01-158-6599 still in active supply?

NSN 6240-01-158-6599 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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