PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50WLamp,incandescent

Rexarc International, Inc · NSN 6240-00-155-8633 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-155-8633 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-155-8633. Primary manufacturer part number: 50W.
Features
  • Lamp,incandescent — FSC 6240
  • Average Life Rating in Hours: 1000.0
  • Bulb Designator: A-19
  • Filament Designation: C-22
  • Base Style: MEDIUM SCREW
  • Emitted Light Characteristic: RUBY, NATURAL
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Rated Average Life: HOURS
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-155-8633, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Rexarc International, Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6240-00-155-8633
Primary Part Number50W
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerRexarc International, Inc
StatusCANCELLED
Average Life Rating in Hours1000.0
Bulb DesignatorA-19
Filament DesignationC-22
Base StyleMEDIUM SCREW
Emitted Light CharacteristicRUBY, NATURAL
Bulb Light Transmission CharacteristicTRANSPARENT
Rated Average LifeHOURS
Filament Heavy Duty Service RatingROUGH SERVICE
Voltage Rating115.000 VOLTS NOMINAL
Bulb StyleA (ARBITRARY DESIGNATION)
Wattage Rating50.000 WATTS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
6740-00-165-727850W INTERCHANGEABLE
Temperature Control Unit,photogr
Calumet Photographic, Inc.
5120-00-222-4429B6120600 INTERCHANGEABLE
Vise,automobile Glass
Sommer & Maca Industries, Inc Dba Somaca
8135-00-956-215250W INTERCHANGEABLE
Strapping
Complete Packaging and Shipping Supplies, Inc.
5330-00-977-793350W INTERCHANGEABLE
Seal,special
Nyltite Corp of America
5930-01-316-398350W INTERCHANGEABLE
Switch,thermostatic
Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives
Cross-Reference Index
Part NumberManufacturer
50W Rexarc International, Inc (USA)
W-L-101 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
50A19-5NDR115V Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
MS15586-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6740-00-165-7278INTERCHANGEABLE
TEMPERATURE CONTROL UNIT,PHOTOGR
50W
5120-00-222-4429INTERCHANGEABLE
VISE,AUTOMOBILE GLASS
B6120600
8135-00-956-2152INTERCHANGEABLE
STRAPPING
50W
5330-00-977-7933INTERCHANGEABLE
SEAL,SPECIAL
50W
5930-01-316-3983INTERCHANGEABLE
SWITCH,THERMOSTATIC
50W

Frequently Asked Questions

What is NSN 6240-00-155-8633?

NSN 6240-00-155-8633 is a Lamp,incandescent, manufactured by Rexarc International, Inc, classified under FSC 6240 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6240-00-155-8633?

NSN 6240-00-155-8633 has 4 cross-referenced part numbers: 50W (Rexarc International, Inc), W-L-101 (Federal Specifications Promulgated by General Services Administration Washington DC), 50A19-5NDR115V (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), MS15586-3 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6240-00-155-8633?

There are 5 known substitutes for 6240-00-155-8633: 6740-00-165-7278, 5120-00-222-4429, 8135-00-956-2152 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50W?

Key specifications for 50W: Average Life Rating in Hours: 1000.0; Bulb Designator: A-19; Filament Designation: C-22; Overall Length: 3.938 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6240-00-155-8633 still in active supply?

NSN 6240-00-155-8633 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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