PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0L-370BPLamp,incandescent

Naval Research Laboratory · NSN 6240-00-324-5644 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-324-5644 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-324-5644. Primary manufacturer part number: 0L-370BP.
Features
  • Lamp,incandescent — FSC 6240
  • Light Output Rating: 0.150 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
  • Filament Heavy Duty Service Rating: NOT RATED
  • Voltage Rating: 18.000 VOLTS NOMINAL
  • Average Life Rating in Hours: 10000.0
  • Wattage Rating: 0.720 WATTS
  • Specification/standard Data: 08108-7370 MANUFACTURERS STANDARD
  • Light Center Length: 0.500 INCHES NOMINAL IN
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-324-5644, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Naval Research Laboratory. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 16 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
NSN6240-00-324-5644
Primary Part Number0L-370BP
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerNaval Research Laboratory
StatusCANCELLED
Light Output Rating0.150 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Filament Heavy Duty Service RatingNOT RATED
Voltage Rating18.000 VOLTS NOMINAL
Average Life Rating in Hours10000.0
Wattage Rating0.720 WATTS
Specification/standard Data08108-7370 MANUFACTURERS STANDARD
Light Center Length0.500 INCHES NOMINAL IN
Base StyleSUB-MINIATURE TWO PIN
Emitted Light CharacteristicCOLORLESS
Bulb Light Transmission CharacteristicTRANSPARENT
Bulb StyleT (TUBULAR)
Bulb DesignatorT-1 3/4
Rated Average LifeHOURS
Filament DesignationC-2F
Current Rating for Which Designed0.040 AMPERES NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6105-00-065-55757370 INTERCHANGEABLE
Motor,alternating Current
Ward Leonard Ct Llc
5935-00-199-1787KL INTERCHANGEABLE
Adapter,connector to Lamp Base
Westinghouse Electric Corp
2920-00-317-6325PL7370 INTERCHANGEABLE
Plate,impulse Coupl
United Technologies Corp Electro Systems Inc
3030-00-649-756413371 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5960-00-819-1153 INTERCHANGEABLE
Electron Tube
6625-01-092-1814MT7370X INTERCHANGEABLE
Analyzer,spectrum
Maury Microwave, Inc. Dba Maury Microwave
3110-01-123-1139214-3 INTERCHANGEABLE
Cup,tapered Roller Bearing
Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems
6230-01-187-6694PL7370 INTERCHANGEABLE
Base Assembly,searc
Carlisle & Finch Co
5940-01-251-61057370 INTERCHANGEABLE
Post,binding,electrical
Eby Group, Llc, the Dba Eby Company Div Eby Company
5110-01-685-51487-370 INTERCHANGEABLE
Utility Tool
Airtronic Usa, Llc.
Cross-Reference Index
Part NumberManufacturer
0L-370BP Naval Research Laboratory (USA)
SA7370 Shelly Associates Inc. (USA)
385912-5 Raytheon Company Div Corp (USA)
7370 Te Connectivity Corporation (USA)
2140-0300 Keysight Technologies, Inc. (USA)
2140-0300 Hewlett-Packard Company Dba HP (USA)
2140-0300 Keysight Technologies Inc (USA)
7370 Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
7370 Gte Products Corp Sylvania Miniature Lighting Div (USA)
CM7-7370 Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
710 Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch (USA)
7370 General Electric Co Miniature Lamp Products Dept Lighting Business Group (USA)
7370 Alco Electronic Products Inc (USA)
PL7370 Precision Lamp Inc (USA)
0L-370BP Wamco, Inc. Dba Wamco Inc (USA)
LTX7370 Lamptronix Co Ltd (USA)
Related Parts
6105-00-065-5575INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
7370
5935-00-199-1787INTERCHANGEABLE
ADAPTER,CONNECTOR TO LAMP BASE
KL
2920-00-317-6325INTERCHANGEABLE
PLATE,IMPULSE COUPL
PL7370
3030-00-649-7564INTERCHANGEABLE
BELT,V
13371
5960-00-819-1153INTERCHANGEABLE
ELECTRON TUBE
6625-01-092-1814INTERCHANGEABLE
ANALYZER,SPECTRUM
MT7370X
3110-01-123-1139INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
214-3
6230-01-187-6694INTERCHANGEABLE
BASE ASSEMBLY,SEARC
PL7370
5940-01-251-6105INTERCHANGEABLE
POST,BINDING,ELECTRICAL
7370
5110-01-685-5148INTERCHANGEABLE
UTILITY TOOL
7-370
6685-01-697-3443INTERCHANGEABLE
THERMOWELL
385-9125
5895-01-718-0755INTERCHANGEABLE
AMPLIFIER-POWER SUPPLY
21400-300

Frequently Asked Questions

What is NSN 6240-00-324-5644?

NSN 6240-00-324-5644 is a Lamp,incandescent, manufactured by Naval Research Laboratory, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-324-5644?

NSN 6240-00-324-5644 has 16 cross-referenced part numbers: 0L-370BP (Naval Research Laboratory), SA7370 (Shelly Associates Inc.), 385912-5 (Raytheon Company Div Corp), 7370 (Te Connectivity Corporation), 2140-0300 (Keysight Technologies, Inc.) and 11 more.

What NSN replaces 6240-00-324-5644?

There are 12 known substitutes for 6240-00-324-5644: 6105-00-065-5575, 5935-00-199-1787, 2920-00-317-6325 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0L-370BP?

Key specifications for 0L-370BP: Light Output Rating: 0.150 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING; Filament Heavy Duty Service Rating: NOT RATED; Voltage Rating: 18.000 VOLTS NOMINAL; Average Life Rating in Hours: 10000.0. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-324-5644 still in active supply?

NSN 6240-00-324-5644 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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