PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K1Lamp,incandescent

Lamp Industry for Use with Industry Designations and Abbreviations for Lamps · NSN 6240-00-238-8528 · FSC 6240 · No Item Name Available
Verified by PartsTable
NSN 6240-00-238-8528 — this item is cataloged by the U.S. Government under National Stock Number 6240-00-238-8528. Primary manufacturer part number: K1.
Features
  • Lamp,incandescent — FSC 6240
  • Current Rating for Which Designed: 0.033 AMPERES MINIMUM AND 0.045 AMPERES MAXIMUM
  • Bulb Style: T (TUBULAR)
  • Rated Average Life: INDEFINITE LONG
  • Emitted Light Characteristic: WHITE
  • Filament Heavy Duty Service Rating: NOT RATED
  • Bulb Light Transmission Characteristic: TRANSPARENT
  • Base Style: TELEPHONE SLIDE NUMBER TWO
Applications
  • Area illumination
  • Indicator and warning display
  • Navigation and signal lighting
General Description

The Lamp,incandescent, cataloged under National Stock Number 6240-00-238-8528, is classified within Federal Supply Class 6240 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Lamp Industry for Use with Industry Designations and Abbreviations for Lamps. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6240-00-238-8528
Primary Part NumberK1
Item NameLamp,incandescent
FSC / FSG6240 / 62 — No Item Name Available
ManufacturerLamp Industry for Use with Industry Designations and Abbreviations for Lamps
StatusACTIVE
Current Rating for Which Designed0.033 AMPERES MINIMUM AND 0.045 AMPERES MAXIMUM
Bulb StyleT (TUBULAR)
Rated Average LifeINDEFINITE LONG
Emitted Light CharacteristicWHITE
Filament Heavy Duty Service RatingNOT RATED
Bulb Light Transmission CharacteristicTRANSPARENT
Base StyleTELEPHONE SLIDE NUMBER TWO
Bulb DesignatorT-2
Light Output Rating400.000 END FOOTCANDLES MINIMUM SINGLE RATING
Voltage Rating30.000 VOLTS NOMINAL
Filament DesignationC-21
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3455-00-021-2414 INTERCHANGEABLE
File,rotary
4010-00-023-7727PS1-1413-1 INTERCHANGEABLE
Link,chain,end
Lockheed Martin Corp
5975-00-056-1657 INTERCHANGEABLE
Conduit Outlet
2330-00-204-2190 INTERCHANGEABLE
Chassis,trailer
3460-00-264-55773030T INTERCHANGEABLE
Key,drill Chuck
Black and Decker Us Inc
2590-00-345-8787K1 INTERCHANGEABLE
Parts Kit,linear Actuating Cylin
Layton Manufacturing Co.
6130-00-548-1667 INTERCHANGEABLE
Power Supply
6760-00-607-4860 INTERCHANGEABLE
Control,forward Cam
5930-00-636-442176RE55J1164PT210 INTERCHANGEABLE
Switch,rotary
Naval Ship Systems Command
3455-00-953-5990900034-045 INTERCHANGEABLE
Blade Set,squaring and Deburring
Phi
Cross-Reference Index
Part NumberManufacturer
K1 American Telephone and Telegraph Co (USA)
K1 Lucent Technologies Inc Dba Federal Marketing Group (USA)
K1 PRIMARY Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
K1 PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
Related Parts
3455-00-021-2414INTERCHANGEABLE
FILE,ROTARY
4010-00-023-7727INTERCHANGEABLE
LINK,CHAIN,END
PS1-1413-1
5975-00-056-1657INTERCHANGEABLE
CONDUIT OUTLET
2330-00-204-2190INTERCHANGEABLE
CHASSIS,TRAILER
3460-00-264-5577INTERCHANGEABLE
KEY,DRILL CHUCK
3030T
2590-00-345-8787INTERCHANGEABLE
PARTS KIT,LINEAR ACTUATING CYLIN
K1
6130-00-548-1667INTERCHANGEABLE
POWER SUPPLY
6760-00-607-4860INTERCHANGEABLE
CONTROL,FORWARD CAM
5930-00-636-4421INTERCHANGEABLE
SWITCH,ROTARY
76RE55J1164PT210
3455-00-953-5990INTERCHANGEABLE
BLADE SET,SQUARING AND DEBURRING
900034-045
3460-01-018-4217INTERCHANGEABLE
KEY,DRILL CHUCK
5110-01-068-1562INTERCHANGEABLE
KNIFE,CRAFTSMAN'S
K-1

Frequently Asked Questions

What is NSN 6240-00-238-8528?

NSN 6240-00-238-8528 is a Lamp,incandescent, manufactured by Lamp Industry for Use with Industry Designations and Abbreviations for Lamps, classified under FSC 6240 (No Item Name Available). Status: active.

What are the part numbers for NSN 6240-00-238-8528?

NSN 6240-00-238-8528 has 4 cross-referenced part numbers: K1 (American Telephone and Telegraph Co), K1 (Lucent Technologies Inc Dba Federal Marketing Group), K1 (Lamp Industry for Use with Industry Designations and Abbreviations for Lamps), K1 (Lucent Technologies Inc Corporate Headquarters).

What NSN replaces 6240-00-238-8528?

There are 12 known substitutes for 6240-00-238-8528: 3455-00-021-2414, 4010-00-023-7727, 5975-00-056-1657 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K1?

Key specifications for K1: Current Rating for Which Designed: 0.033 AMPERES MINIMUM AND 0.045 AMPERES MAXIMUM; Bulb Style: T (TUBULAR); Rated Average Life: INDEFINITE LONG; Emitted Light Characteristic: WHITE. 12 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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