PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

543Lampholder

Light Sources, Inc Dba Lsi · NSN 6250-00-965-5376 · FSC 6250 · No Item Name Available
Verified by PartsTable
NSN 6250-00-965-5376 — this item is cataloged by the U.S. Government under National Stock Number 6250-00-965-5376. Primary manufacturer part number: 543.
Features
  • Lampholder — FSC 6250
  • Mounting Feature Type: SURFACE
  • Style Designator: WIRE LEADS
  • Lamp Base Type Accommodated: MEDIUM BIPIN
  • Material: COPPER ALLOY SHELL
  • Material: PLASTIC BODY
  • Hazardous Locations/environmental Protection: NOT RATED
  • Mounting Method: THREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Applications
  • Applications requiring Copper Alloy Shell construction
General Description

The Lampholder, cataloged under National Stock Number 6250-00-965-5376, is classified within Federal Supply Class 6250 (No Item Name Available) of the Lighting Fixtures and Lamps group. The primary manufacturer of record is Light Sources, Inc Dba Lsi. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN6250-00-965-5376
Primary Part Number543
Item NameLampholder
FSC / FSG6250 / 62 — No Item Name Available
ManufacturerLight Sources, Inc Dba Lsi
StatusACTIVE
Mounting Feature TypeSURFACE
Style DesignatorWIRE LEADS
Lamp Base Type AccommodatedMEDIUM BIPIN
MaterialCOPPER ALLOY SHELL
MaterialPLASTIC BODY
Hazardous Locations/environmental ProtectionNOT RATED
Mounting MethodTHREADED HOLE(S) LOCATION NOT OTHERWISE SPECIFIED
Mounting Device Quantity2
Terminal TypeWIRE LEAD
Voltage in Volts600.0
Outside Diameter1.125 INCHES NOMINAL IN
Wattage Rating in Watts660.0
Terminal Quantity2
Wiring Provision Length9.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5130-00-004-6773543 INTERCHANGEABLE
Installation Tool,fastener,hydra
Huck International, Inc. Div Kingston Operations
4820-00-036-2104 INTERCHANGEABLE
Diaphragm,valve,flat
5315-00-198-5978103604 INTERCHANGEABLE
Pin,tapered,plain
Chrysler Realty Company Llc Dba Daimler Chrysler
5220-00-215-1885543 INTERCHANGEABLE
Gage,comparator,electronic
Warner and Swasey Co Sheffield Measurement Div Sub of Cross and Trecker Corp
5930-00-249-1445118597H1 INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5940-00-282-9563543 INTERCHANGEABLE
Terminal,lug
Zierick Mfg Corp
6730-00-432-5659 INTERCHANGEABLE
Projector,still Picture
2920-00-433-0813105-151 INTERCHANGEABLE
Regulator,engine Generator
Prestolite Electric Inc
2520-00-532-5096543 INTERCHANGEABLE
Lever Asy
Atwood Industries Inc Automotive Div
3950-01-011-6359543 INTERCHANGEABLE
Crane,floor,portable
Thern Inc
Cross-Reference Index
Part NumberManufacturer
5111-44 Raytheon Company Div Rmd Strategic (USA)
543 Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron (USA)
543 PRIMARY Light Sources, Inc Dba Lsi (USA)
543 Dialight Corporation (USA)
5111-44 Raytheon Company Dba Raytheon (USA)
Related Parts
5130-00-004-6773INTERCHANGEABLE
INSTALLATION TOOL,FASTENER,HYDRA
543
4820-00-036-2104INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
5315-00-198-5978INTERCHANGEABLE
PIN,TAPERED,PLAIN
103604
5220-00-215-1885INTERCHANGEABLE
GAGE,COMPARATOR,ELECTRONIC
543
5930-00-249-1445INTERCHANGEABLE
SWITCH,ROTARY
118597H1
5940-00-282-9563INTERCHANGEABLE
TERMINAL,LUG
543
6730-00-432-5659INTERCHANGEABLE
PROJECTOR,STILL PICTURE
2920-00-433-0813INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
105-151
2520-00-532-5096INTERCHANGEABLE
LEVER ASY
543
3950-01-011-6359INTERCHANGEABLE
CRANE,FLOOR,PORTABLE
543
6675-01-052-1420INTERCHANGEABLE
TEMPLATE,DRAFTING
1217I
6520-01-067-1229INTERCHANGEABLE
FILE,PULP CANAL,DENTAL
270543NC

Frequently Asked Questions

What is NSN 6250-00-965-5376?

NSN 6250-00-965-5376 is a Lampholder, manufactured by Light Sources, Inc Dba Lsi, classified under FSC 6250 (No Item Name Available). Status: active.

What are the part numbers for NSN 6250-00-965-5376?

NSN 6250-00-965-5376 has 5 cross-referenced part numbers: 5111-44 (Raytheon Company Div Rmd Strategic), 543 (Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron), 543 (Light Sources, Inc Dba Lsi), 543 (Dialight Corporation), 5111-44 (Raytheon Company Dba Raytheon).

What NSN replaces 6250-00-965-5376?

There are 12 known substitutes for 6250-00-965-5376: 5130-00-004-6773, 4820-00-036-2104, 5315-00-198-5978 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 543?

Key specifications for 543: Mounting Feature Type: SURFACE; Style Designator: WIRE LEADS; Lamp Base Type Accommodated: MEDIUM BIPIN; Material: COPPER ALLOY SHELL. 15 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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