PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H33CD-400Lamp,mercury Vapor

Osram Sylvania Inc · NSN 6240-00-519-0727 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-519-0727 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-519-0727. Primary manufacturer part number: H33CD-400.
Features
  • Lamp,mercury Vapor — FSC 6240
  • Average Life Rating in Hours: 24000.0
  • Wattage Rating: 400.000 WATTS
  • Base Style: MOGUL SCREW
  • Bulb Designator: BT-37
  • Light Center Length: 7.000 INCHES NOMINAL IN
  • Light Intensity Distribution Feature: PHOSPHOR COATED BAND
  • Emitted Light Characteristic: BLUE-WHITE
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,mercury Vapor, cataloged under National Stock Number 6240-00-519-0727, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 8 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
NSN6240-00-519-0727
Primary Part NumberH33CD-400
Item NameLamp,mercury Vapor
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerOsram Sylvania Inc
StatusCANCELLED
Average Life Rating in Hours24000.0
Wattage Rating400.000 WATTS
Base StyleMOGUL SCREW
Bulb DesignatorBT-37
Light Center Length7.000 INCHES NOMINAL IN
Light Intensity Distribution FeaturePHOSPHOR COATED BAND
Emitted Light CharacteristicBLUE-WHITE
Light Output Rating18900.000 LUMENS NOMINAL SINGLE RATING
Bulb Light Transmission CharacteristicTRANSPARENT
Rated Average LifeHOURS
Bulb StyleBT (BULGED TUBULAR)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6240-00-184-5823H100PFL44-4 INTERCHANGEABLE
Lamp,mercury Vapor
General Electric Company Dba Ge
6240-00-617-1035H33GL-400/C INTERCHANGEABLE
Lamp,mercury Vapor
American National Standards Institute Incorporated Dba American National Standards Institute
6240-00-617-1705H36-15GWC INTERCHANGEABLE
Lamp,mercury Vapor
American National Standards Institute Incorporated Dba American National Standards Institute
2995-00-713-0391 INTERCHANGEABLE
Element Assy,air Co
6240-00-875-8075H43AYDX INTERCHANGEABLE
Lamp,mercury Vapor
American National Standards Institute Incorporated Dba American National Standards Institute
6240-00-885-6781H38-4JA/DXE INTERCHANGEABLE
Lamp,mercury Vapor
American National Standards Institute Incorporated Dba American National Standards Institute
6240-00-885-6821 INTERCHANGEABLE
Lamp,mercury Vapor
6240-00-887-8103H38MP-100/DX INTERCHANGEABLE
Lamp,mercury Vapor
American National Standards Institute Incorporated Dba American National Standards Institute
6240-00-889-1764H34-12GVC INTERCHANGEABLE
Lamp,mercury Vapor
American National Standards Institute Incorporated Dba American National Standards Institute
6240-00-889-1825H37-5KCC INTERCHANGEABLE
Lamp,mercury Vapor
American National Standards Institute Incorporated Dba American National Standards Institute
Cross-Reference Index
Part NumberManufacturer
H400E1 General Electric Company Dba Ge (USA)
H33CD-400 PRIMARY Osram Sylvania Inc (USA)
C78-380 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
H33CD-400 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
H33CD-400 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
H331CD North American Philips Lighting Corp (USA)
H33-1CD American National Standards Institute Incorporated Dba American National Standards Institute (USA)
H33-1CD North American Philips Lighting Corp (USA)
H33-1CDE40 Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
H13-1CD North American Philips Lighting Corp (USA)
A9025 Stewart Avionics Inc (USA)
H33-1CDE40 Westinghouse Electric Corp (USA)
H400A33-1BT General Electric Company Dba Ge (USA)
H33CD-400 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
Related Parts
6240-00-184-5823INTERCHANGEABLE
LAMP,MERCURY VAPOR
H100PFL44-4
6240-00-617-1035INTERCHANGEABLE
LAMP,MERCURY VAPOR
H33GL-400/C
6240-00-617-1705INTERCHANGEABLE
LAMP,MERCURY VAPOR
H36-15GWC
2995-00-713-0391INTERCHANGEABLE
ELEMENT ASSY,AIR CO
6240-00-875-8075INTERCHANGEABLE
LAMP,MERCURY VAPOR
H43AYDX
6240-00-885-6781INTERCHANGEABLE
LAMP,MERCURY VAPOR
H38-4JA/DXE
6240-00-885-6821INTERCHANGEABLE
LAMP,MERCURY VAPOR
6240-00-887-8103INTERCHANGEABLE
LAMP,MERCURY VAPOR
H38MP-100/DX
6240-00-889-1764INTERCHANGEABLE
LAMP,MERCURY VAPOR
H34-12GVC
6240-00-889-1825INTERCHANGEABLE
LAMP,MERCURY VAPOR
H37-5KCC
6240-00-899-6990INTERCHANGEABLE
LAMP,MERCURY VAPOR
H33DN-400/W
6240-00-949-8078INTERCHANGEABLE
LAMP,MERCURY VAPOR
39605

Frequently Asked Questions

What is NSN 6240-00-519-0727?

NSN 6240-00-519-0727 is a Lamp,mercury Vapor, manufactured by Osram Sylvania Inc, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-519-0727?

NSN 6240-00-519-0727 has 14 cross-referenced part numbers: H400E1 (General Electric Company Dba Ge), H33CD-400 (Osram Sylvania Inc), C78-380 (American National Standards Institute Incorporated Dba American National Standards Institute), H33CD-400 (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), H33CD-400 (American National Standards Institute Incorporated Dba American National Standards Institute) and 9 more.

What NSN replaces 6240-00-519-0727?

There are 12 known substitutes for 6240-00-519-0727: 6240-00-184-5823, 6240-00-617-1035, 6240-00-617-1705 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H33CD-400?

Key specifications for H33CD-400: Average Life Rating in Hours: 24000.0; Wattage Rating: 400.000 WATTS; Base Style: MOGUL SCREW; Bulb Designator: BT-37. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-519-0727 still in active supply?

NSN 6240-00-519-0727 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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