PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W2Heater,controller

Ward Leonard Ct Llc · NSN 4540-00-124-6966 · FSC 4540 · No Item Name Available
Verified by PartsTable
NSN 4540-00-124-6966 — this item is cataloged by the U.S. Government under National Stock Number 4540-00-124-6966. Primary manufacturer part number: W2.
Features
  • Heater,controller — FSC 4540
  • 1 verified cross-reference
  • Primary manufacturer: Ward Leonard Ct Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,controller, cataloged under National Stock Number 4540-00-124-6966, is classified within Federal Supply Class 4540 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Ward Leonard Ct Llc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameHeater,controller
FSC / FSG4540 — No Item Name Available (FSG 45)
ManufacturersWard Leonard Ct Llc (CAGE 63743)
Technical Specifications
ParameterValue
NSN4540-00-124-6966
Primary Part NumberW2
Item NameHeater,controller
FSC / FSG4540 / 45 — No Item Name Available
ManufacturerWard Leonard Ct Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-156-1760 INTERCHANGEABLE
Bearing,ball,thrust
4320-00-218-4292BS4-1439PC16 INTERCHANGEABLE
Head,housing
Circor Naval Solutions Llc Dba Warren Pumps
5920-00-240-4112W2 INTERCHANGEABLE
Fuse,plug
Cooper Bussmann, Llc Dba Cooper Industries
3895-00-250-6054 INTERCHANGEABLE
Roller,towed,sheepsfoot
5905-00-284-2089 INTERCHANGEABLE
Resistor,variable,wire Wound,non
3020-00-294-8151 INTERCHANGEABLE
Gear,worm
2540-00-473-0353533220 INTERCHANGEABLE
Windshield Washer
Fwd Seagrave Holdings Lp
5950-00-581-5189W2-1D INTERCHANGEABLE
Transformer,power Autotransforme
Technipower Llc Dba Unipower
5325-00-599-9894W2 INTERCHANGEABLE
Stud Assembly,turnlock Fastener
Simmons Fastener Corp an Amfast Corp
5342-00-630-7107W2 INTERCHANGEABLE
Clamp
Monogram Aerospace Fasteners, Inc Dba Trimas Aerospace Div Monogram Aerospace Fasteners
Cross-Reference Index
Part NumberManufacturer
W2 PRIMARY Ward Leonard Ct Llc (USA)
Related Parts
3110-00-156-1760INTERCHANGEABLE
BEARING,BALL,THRUST
4320-00-218-4292INTERCHANGEABLE
HEAD,HOUSING
BS4-1439PC16
5920-00-240-4112INTERCHANGEABLE
FUSE,PLUG
W2
3895-00-250-6054INTERCHANGEABLE
ROLLER,TOWED,SHEEPSFOOT
5905-00-284-2089INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
3020-00-294-8151INTERCHANGEABLE
GEAR,WORM
2540-00-473-0353INTERCHANGEABLE
WINDSHIELD WASHER
533220
5950-00-581-5189INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
W2-1D
5325-00-599-9894INTERCHANGEABLE
STUD ASSEMBLY,TURNLOCK FASTENER
W2
5342-00-630-7107INTERCHANGEABLE
CLAMP
W2
5950-00-681-2253INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
1844819PC1
3950-00-775-7609INTERCHANGEABLE
WINCH,DRUM,HAND OPERATED
W2

Frequently Asked Questions

What is NSN 4540-00-124-6966?

NSN 4540-00-124-6966 is a Heater,controller, manufactured by Ward Leonard Ct Llc, classified under FSC 4540 (No Item Name Available). Status: active.

What are the part numbers for NSN 4540-00-124-6966?

NSN 4540-00-124-6966 has 1 cross-referenced part number: W2 (Ward Leonard Ct Llc).

What NSN replaces 4540-00-124-6966?

There are 12 known substitutes for 4540-00-124-6966: 3110-00-156-1760, 4320-00-218-4292, 5920-00-240-4112 and 9 more. Verify interchangeability with system specifications before substitution.

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