PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

111739Heater,water,electric

Fort Defiance Industries Llc · NSN 4520-01-493-7423 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-493-7423 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-493-7423. Primary manufacturer part number: 111739.
Features
  • Heater,water,electric — FSC 4520
  • 3 verified cross-references
  • Primary manufacturer: Fort Defiance Industries Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,water,electric, cataloged under National Stock Number 4520-01-493-7423, is classified within Federal Supply Class 4520 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Fort Defiance Industries Llc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-493-7423
Primary Part Number111739
Item NameHeater,water,electric
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerFort Defiance Industries Llc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5120-00-032-9451 INTERCHANGEABLE
Expander
4920-00-067-81602947 INTERCHANGEABLE
Bar,pair-Blade Posi
Marvel Manufacturing Co Div the Marvel Manufacturing Company
5340-00-459-603444025H INTERCHANGEABLE
Cap,protective,dust and Moisture
Navistar Intl Corp Truck Br Ohio Plant
5950-00-648-1692SCC63762 INTERCHANGEABLE
Reactor
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5825-01-095-9768 INTERCHANGEABLE
Module
2990-01-147-6466102504 INTERCHANGEABLE
Muffler,exhaust
Arvin Industries Inc
6625-01-432-69972947 INTERCHANGEABLE
Test Set,radio
Viavi Solutionsllc
Cross-Reference Index
Part NumberManufacturer
111739 PRIMARY Fort Defiance Industries Llc (USA)
2947 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
4520NCM071236 Defense Medical Standardization Board (USA)
Related Parts
5120-00-032-9451INTERCHANGEABLE
EXPANDER
4920-00-067-8160INTERCHANGEABLE
BAR,PAIR-BLADE POSI
2947
5340-00-459-6034INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
44025H
5950-00-648-1692INTERCHANGEABLE
REACTOR
SCC63762
5825-01-095-9768INTERCHANGEABLE
MODULE
2990-01-147-6466INTERCHANGEABLE
MUFFLER,EXHAUST
102504
6625-01-432-6997INTERCHANGEABLE
TEST SET,RADIO
2947

Frequently Asked Questions

What is NSN 4520-01-493-7423?

NSN 4520-01-493-7423 is a Heater,water,electric, manufactured by Fort Defiance Industries Llc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-493-7423?

NSN 4520-01-493-7423 has 3 cross-referenced part numbers: 111739 (Fort Defiance Industries Llc), 2947 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), 4520NCM071236 (Defense Medical Standardization Board).

What NSN replaces 4520-01-493-7423?

There are 7 known substitutes for 4520-01-493-7423: 5120-00-032-9451, 4920-00-067-8160, 5340-00-459-6034 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 111739?

Key specifications for 111739: Special Features: TUBE WATER HEATER USED FOR THE MEDICAL WATER SYSTEM; WEIGHT: 49 LBS LBS. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com