PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILH1597Heater,immersion,liquid Fuel Fir

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4520-00-289-7972 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-289-7972 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-289-7972. Primary manufacturer part number: MILH1597.
Features
  • Heater,immersion,liquid Fuel Fir — FSC 4520
  • General Characteristics Item Description: 15 IN; DIA OF COMBUSTION CHAMBER 4 IN. DIA OF STOVEPIPE 30 IN; LG OF HEATER ONLY; DESIGNED FOR GASOLINE; 2.2 GAL FUEL TANK CAP;; 35000 NORMAL RATED BTU HEAT OUTPUT CAP; IN
  • Departure From Cited Document: MIL-H-1597 EXCEPT NORMAL RATED BTU HEAT OUPUT CAP; ADDED BY NORMAL RATED BRITISH THERMALUNIT HEAT OUTPUT
  • 1 verified cross-reference
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,immersion,liquid Fuel Fir, cataloged under National Stock Number 4520-00-289-7972, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-00-289-7972
Primary Part NumberMILH1597
Item NameHeater,immersion,liquid Fuel Fir
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
General Characteristics Item Description15 IN; DIA OF COMBUSTION CHAMBER 4 IN. DIA OF STOVEPIPE 30 IN; LG OF HEATER ONLY; DESIGNED FOR GASOLINE; 2.2 GAL FUEL TANK CAP;; 35000 NORMAL RATED BTU HEAT OUTPUT CAP; IN
Departure From Cited DocumentMIL-H-1597 EXCEPT NORMAL RATED BTU HEAT OUPUT CAP; ADDED BY NORMAL RATED BRITISH THERMALUNIT HEAT OUTPUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-555-85275-13-2686-5-12 INTERCHANGEABLE
Plug,filler
W1d1 Natick Soldier Center Dba Us Army Ccdc Soldier Center Div Combat Capabilities Development Command - Soldier Center
4540-00-555-8528 INTERCHANGEABLE
Strap Assembly,fuel Tank
4820-00-555-8531 INTERCHANGEABLE
Valve Assembly
Cross-Reference Index
Part NumberManufacturer
MILH1597 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-555-8527INTERCHANGEABLE
PLUG,FILLER
5-13-2686-5-12
4540-00-555-8528INTERCHANGEABLE
STRAP ASSEMBLY,FUEL TANK
4820-00-555-8531INTERCHANGEABLE
VALVE ASSEMBLY

Frequently Asked Questions

What is NSN 4520-00-289-7972?

NSN 4520-00-289-7972 is a Heater,immersion,liquid Fuel Fir, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-00-289-7972?

NSN 4520-00-289-7972 has 1 cross-referenced part number: MILH1597 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4520-00-289-7972?

There are 3 known substitutes for 4520-00-289-7972: 4730-00-555-8527, 4540-00-555-8528, 4820-00-555-8531. Verify interchangeability with system specifications before substitution.

What are the specifications of MILH1597?

Key specifications for MILH1597: General Characteristics Item Description: 15 IN; DIA OF COMBUSTION CHAMBER 4 IN. DIA OF STOVEPIPE 30 IN; LG OF HEATER ONLY; DESIGNED FOR GASOLINE; 2.2 GAL FUEL TANK CAP;; 35000 NORMAL RATED BTU HEAT OUTPUT CAP; IN; Departure From Cited Document: MIL-H-1597 EXCEPT NORMAL RATED BTU HEAT OUPUT CAP; ADDED BY NORMAL RATED BRITISH THERMALUNIT HEAT OUTPUT. 2 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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