PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74132-1Heater Modification

Hdt Expeditionary Systems Inc · NSN 4520-01-084-4126 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-084-4126 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-084-4126. Primary manufacturer part number: 74132-1.
Features
  • Heater Modification — FSC 4520
  • FSC Application Data: HEATER,TRAILER MOUNTED,HDU13M
  • 5 verified cross-references
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater Modification, cataloged under National Stock Number 4520-01-084-4126, 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 Hdt Expeditionary Systems Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-084-4126
Primary Part Number74132-1
Item NameHeater Modification
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
FSC Application DataHEATER,TRAILER MOUNTED,HDU13M
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2910-00-049-357573176 INTERCHANGEABLE
Guide,valve,fuel Control
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
3020-00-129-195274132 INTERCHANGEABLE
Gear,worm Wheel
Telemechanics Inc
5133-00-228-1415 INTERCHANGEABLE
Drill,twist
5962-01-048-9561 INTERCHANGEABLE
Microcircuit,digital
5330-01-094-366574132 INTERCHANGEABLE
Gasket
Tld Ace Corp Div Tld Ace
5340-01-342-262074132 INTERCHANGEABLE
Seat,helical Compression Spring
Triumph Engine Control Systems Llc
Cross-Reference Index
Part NumberManufacturer
74132-1 Hdt Expeditionary Systems Inc (USA)
74132 Keco Industries, Inc. (USA)
74132-1 Keco Industries, Inc. (USA)
4520PL1031626 Jednolity Indeks Materialowy - Uniform Material Index (POL)
74132-1 Drs Environmental Systems Inc (USA)
Related Parts
2910-00-049-3575INTERCHANGEABLE
GUIDE,VALVE,FUEL CONTROL
73176
3020-00-129-1952INTERCHANGEABLE
GEAR,WORM WHEEL
74132
5133-00-228-1415INTERCHANGEABLE
DRILL,TWIST
5962-01-048-9561INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5330-01-094-3665INTERCHANGEABLE
GASKET
74132
5340-01-342-2620INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
74132

Frequently Asked Questions

What is NSN 4520-01-084-4126?

NSN 4520-01-084-4126 is a Heater Modification, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-084-4126?

NSN 4520-01-084-4126 has 5 cross-referenced part numbers: 74132-1 (Hdt Expeditionary Systems Inc), 74132 (Keco Industries, Inc.), 74132-1 (Keco Industries, Inc.), 4520PL1031626 (Jednolity Indeks Materialowy - Uniform Material Index), 74132-1 (Drs Environmental Systems Inc).

What NSN replaces 4520-01-084-4126?

There are 6 known substitutes for 4520-01-084-4126: 2910-00-049-3575, 3020-00-129-1952, 5133-00-228-1415 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 74132-1?

Key specifications for 74132-1: FSC Application Data: HEATER,TRAILER MOUNTED,HDU13M. 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