PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H40-3Heater,duct Type,portable

Drs Environmental Systems Inc · NSN 4520-00-614-2123 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-614-2123 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-614-2123. Primary manufacturer part number: H40-3.
Features
  • Heater,duct Type,portable — FSC 4520
  • Height: 42.000 INCHES NOMINAL IN
  • Heat Medium Type: AIR
  • Heating Element Type: COMBUSTION CHAMBER
  • Heat Delivery Rate: 100000.0 BRITISH THERMAL UNIT
  • Mounting Type: TRAILER
  • Width: 70.000 INCHES NOMINAL IN
  • Surface Treatment: PAINT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,duct Type,portable, cataloged under National Stock Number 4520-00-614-2123, 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 Drs Environmental Systems Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4520-00-614-2123
Primary Part NumberH40-3
Item NameHeater,duct Type,portable
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerDrs Environmental Systems Inc
StatusACTIVE
Height42.000 INCHES NOMINAL IN
Heat Medium TypeAIR
Heating Element TypeCOMBUSTION CHAMBER
Heat Delivery Rate100000.0 BRITISH THERMAL UNIT
Mounting TypeTRAILER
Width70.000 INCHES NOMINAL IN
Surface TreatmentPAINT
Operating Control TypeTHERMOSTATIC
Inclosure MaterialALUMINUM
Depth48.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-227-3253MS51961-30 INTERCHANGEABLE
Bearing,roller,needle
American Society for Testing and Materials Dba Astm International
6105-00-493-33137025-5 INTERCHANGEABLE
Motor,alternating Current
Western Sky Industries Inc Dba Electromech Techologies
3120-00-574-0847RB4248-24 INTERCHANGEABLE
Bearing,sleeve
Randall Bearing Inc
Cross-Reference Index
Part NumberManufacturer
H40-3 Drs Environmental Systems Inc (USA)
H40-3 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
Related Parts
3110-00-227-3253INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
MS51961-30
6105-00-493-3313INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
7025-5
3120-00-574-0847INTERCHANGEABLE
BEARING,SLEEVE
RB4248-24

Frequently Asked Questions

What is NSN 4520-00-614-2123?

NSN 4520-00-614-2123 is a Heater,duct Type,portable, manufactured by Drs Environmental Systems Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-00-614-2123?

NSN 4520-00-614-2123 has 2 cross-referenced part numbers: H40-3 (Drs Environmental Systems Inc), H40-3 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems).

What NSN replaces 4520-00-614-2123?

There are 3 known substitutes for 4520-00-614-2123: 3110-00-227-3253, 6105-00-493-3313, 3120-00-574-0847. Verify interchangeability with system specifications before substitution.

What are the specifications of H40-3?

Key specifications for H40-3: Height: 42.000 INCHES NOMINAL IN; Heat Medium Type: AIR; Heating Element Type: COMBUSTION CHAMBER; Heat Delivery Rate: 100000.0 BRITISH THERMAL UNIT. 10 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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