PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet
MRO / Lighting Fixtures and Lamps / 6240-01-500-4801

8663Lamp,incandescent

International Light Technologies, Inc. · NSN 6240-01-500-4801 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-01-500-4801 — this item is cataloged by the U.S. Government under National Stock Number 6240-01-500-4801. Primary manufacturer part number: 8663.
LIGHT FSG 62 NO ITEM NAME AVAILABLE Technical Drawing
6240-01-500-4801 — No Item Name Available illustration
Features
  • Lamp,incandescent — FSC 6240
  • Rated Average Life: HOURS
  • Bulb Diameter: 0.250 INCHES MAXIMUM IN
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Emitted Light Characteristic: COLORLESS
  • Features Provided: CARBON FILAMENT
  • Voltage Rating: 2.500 VOLTS NOMINAL
  • Base Style: WIRE LEADS, DOWN
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-01-500-4801, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is International Light Technologies, Inc.. Government technical data includes 10 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: Active.

Technical Specifications
ParameterValue
NSN6240-01-500-4801
Primary Part Number8663
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerInternational Light Technologies, Inc.
StatusACTIVE
Rated Average LifeHOURS
Bulb Diameter0.250 INCHES MAXIMUM IN
Bulb Light Transmission CharacteristicTRANSPARENT
Emitted Light CharacteristicCOLORLESS
Features ProvidedCARBON FILAMENT
Voltage Rating2.500 VOLTS NOMINAL
Base StyleWIRE LEADS, DOWN
Bulb StyleE (ELIPTICAL)
Bulb DesignatorT-1 3/8
Average Life Rating in Hours30.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 12
4730-00-270-3890 INTERCHANGEABLE
Nut,slip Joint
2910-00-374-3556 INTERCHANGEABLE
Pump,fuel,cam Actuated
1620-00-445-2581 INTERCHANGEABLE
Check Valve Assy
6145-00-865-20588663 INTERCHANGEABLE
Braid,wire
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
5310-01-056-21738663 INTERCHANGEABLE
Nut,plain,round
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
4730-01-218-0395 INTERCHANGEABLE
Bushing,pipe
7510-01-326-15678663 MB 2 IN (CUSTOM ORDER) INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
3m Company
7510-01-326-15688663 MB-SS 4X36 INTERCHANGEABLE
Tape,pressure Sensitive Adhesive
3m Company
9330-01-326-18218663 MB-SS 8X36 INTERCHANGEABLE
Plastic Sheet,pressure Sensitive
3m Company
5340-01-355-0703312804-H-200-SL INTERCHANGEABLE
Clamp,loop
Voss Industries, Llc
Cross-Reference Index
Part NumberManufacturer
8663 PRIMARY International Light Technologies, Inc. (USA)
145999-01 Ge Aviation Systems Llc (USA)
CM8-663 Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron (USA)
145999 Ge Aviation Systems Llc (USA)
Related Parts
4730-00-270-3890INTERCHANGEABLE
NUT,SLIP JOINT
2910-00-374-3556INTERCHANGEABLE
PUMP,FUEL,CAM ACTUATED
1620-00-445-2581INTERCHANGEABLE
CHECK VALVE ASSY
6145-00-865-2058INTERCHANGEABLE
BRAID,WIRE
8663
5310-01-056-2173INTERCHANGEABLE
NUT,PLAIN,ROUND
8663
4730-01-218-0395INTERCHANGEABLE
BUSHING,PIPE
7510-01-326-1567INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
8663 MB 2 IN (CUSTOM ORDER)
7510-01-326-1568INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
8663 MB-SS 4X36
9330-01-326-1821INTERCHANGEABLE
PLASTIC SHEET,PRESSURE SENSITIVE
8663 MB-SS 8X36
5340-01-355-0703INTERCHANGEABLE
CLAMP,LOOP
312804-H-200-SL
9390-01-413-2730INTERCHANGEABLE
TAPE,PROTECTIVE,PLASTIC
7010295384
7510-01-509-7514INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
8663-6

Frequently Asked Questions

What is NSN 6240-01-500-4801?

NSN 6240-01-500-4801 is a Lamp,incandescent, manufactured by International Light Technologies, Inc., classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-01-500-4801?

NSN 6240-01-500-4801 has 4 cross-referenced part numbers: 8663 (International Light Technologies, Inc.), 145999-01 (Ge Aviation Systems Llc), CM8-663 (Chicago Miniature Lighting Llc Dba Chicago Miniature Optoelectron), 145999 (Ge Aviation Systems Llc).

What NSN replaces 6240-01-500-4801?

There are 12 known substitutes for 6240-01-500-4801: 4730-00-270-3890, 2910-00-374-3556, 1620-00-445-2581 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8663?

Key specifications for 8663: Rated Average Life: HOURS; Bulb Diameter: 0.250 INCHES MAXIMUM IN; Bulb Light Transmission Characteristic: TRANSPARENT; Emitted Light Characteristic: COLORLESS. 14 total characteristics are documented in the Federal Logistics Information System.

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