PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42-420Lamp,incandescent

Tri Lite Inc · NSN 6240-01-133-4551 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-133-4551 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-133-4551. Primary manufacturer part number: 42-420.
Features
  • Lamp,incandescent — FSC 6240
  • Bulb Designator: PAR-36
  • Emitted Light Characteristic: COLORLESS
  • Current Rating for Which Designed: 2.340 AMPERES NOMINAL
  • Average Life Rating in Hours: 300.0
  • Bulb Style: PAR (PARABOLIC, ALUMINIZED REFLECTOR)
  • Filament Heavy Duty Service Rating: ROUGH SERVICE
  • Wattage Rating: 30.000 WATTS
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-133-4551, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Tri Lite Inc. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN6240-01-133-4551
Primary Part Number42-420
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerTri Lite Inc
StatusCANCELLED
Bulb DesignatorPAR-36
Emitted Light CharacteristicCOLORLESS
Current Rating for Which Designed2.340 AMPERES NOMINAL
Average Life Rating in Hours300.0
Bulb StylePAR (PARABOLIC, ALUMINIZED REFLECTOR)
Filament Heavy Duty Service RatingROUGH SERVICE
Wattage Rating30.000 WATTS
Base StyleTWO SLIP-ON TERMINALS
Terminal Type and Quantity2 SOLDERLESS LUG
Light Intensity Distribution FeatureREFLECTIVE BACK
Light Output Rating35000.000 SPHERICAL CANDLEPOWER NOMINAL SINGLE RATING
Rated Average LifeHOURS
Bulb Light Transmission CharacteristicTRANSPARENT
Filament DesignationC-6
Voltage Rating12.800 VOLTS NOMINAL
Light Beam TypeSPOT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5999-00-034-7542EY5-1-3 INTERCHANGEABLE
Heater,thermal Release
Ellis & Watts International, Llc
5120-00-239-0018 INTERCHANGEABLE
Socket,socket Wrench
5120-00-249-1071 INTERCHANGEABLE
Handle,socket Wrench
2530-00-481-256144161 INTERCHANGEABLE
Tie Rod End,steering
Allianz Sweeper Company
6505-00-515-869942420 INTERCHANGEABLE
Vitamin E Capsules
Goldline Laboratories, Inc. Dba Goldline Laboratories
6105-00-587-1969810071 INTERCHANGEABLE
Motor,air
Balcrank Products Inc
5950-00-927-6765SM-A-595835-108 INTERCHANGEABLE
Coil,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-942-177655-0066-1 INTERCHANGEABLE
Transformer,power Autotransforme
Grimes Aerospace Company
5962-01-089-781342420 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Div Rmd Strategic
7520-01-207-4159 INTERCHANGEABLE
Marker,tube Type
Cross-Reference Index
Part NumberManufacturer
4416-1 General Electric Company Dba Ge (USA)
42-420 Mars Signal Light Co Inc (USA)
42-420 PRIMARY Tri Lite Inc (USA)
4416-1 Mars Signal Light Co Inc (USA)
Related Parts
5999-00-034-7542INTERCHANGEABLE
HEATER,THERMAL RELEASE
EY5-1-3
5120-00-239-0018INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-249-1071INTERCHANGEABLE
HANDLE,SOCKET WRENCH
2530-00-481-2561INTERCHANGEABLE
TIE ROD END,STEERING
44161
6505-00-515-8699INTERCHANGEABLE
VITAMIN E CAPSULES
42420
6105-00-587-1969INTERCHANGEABLE
MOTOR,AIR
810071
5950-00-927-6765INTERCHANGEABLE
COIL,RADIO FREQUENCY
SM-A-595835-108
5950-00-942-1776INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
55-0066-1
5962-01-089-7813INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
42420
7520-01-207-4159INTERCHANGEABLE
MARKER,TUBE TYPE
5910-01-224-7022INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
MA105A101KAA
3020-01-392-8658INTERCHANGEABLE
GEAR,SPUR

Frequently Asked Questions

What is NSN 6240-01-133-4551?

NSN 6240-01-133-4551 is a Lamp,incandescent, manufactured by Tri Lite Inc, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-01-133-4551?

NSN 6240-01-133-4551 has 4 cross-referenced part numbers: 4416-1 (General Electric Company Dba Ge), 42-420 (Mars Signal Light Co Inc), 42-420 (Tri Lite Inc), 4416-1 (Mars Signal Light Co Inc).

What NSN replaces 6240-01-133-4551?

There are 12 known substitutes for 6240-01-133-4551: 5999-00-034-7542, 5120-00-239-0018, 5120-00-249-1071 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42-420?

Key specifications for 42-420: Bulb Designator: PAR-36; Emitted Light Characteristic: COLORLESS; Current Rating for Which Designed: 2.340 AMPERES NOMINAL; Average Life Rating in Hours: 300.0. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-01-133-4551 still in active supply?

NSN 6240-01-133-4551 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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