PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20038Heat Exchanger,heater

Drs Environmental Systems Inc · NSN 4520-01-089-0878 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-089-0878 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-089-0878. Primary manufacturer part number: 20038.
Features
  • Heat Exchanger,heater — FSC 4520
  • General Characteristics Item Description: 17.500 IN. LG; 15.500 IN. O/A DIA; 7.750 IN. DIA BOLT CIRCLE IN
  • 5 verified cross-references
  • Primary manufacturer: Drs Environmental Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heat Exchanger,heater, cataloged under National Stock Number 4520-01-089-0878, 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 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-089-0878
Primary Part Number20038
Item NameHeat Exchanger,heater
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerDrs Environmental Systems Inc
StatusACTIVE
General Characteristics Item Description17.500 IN. LG; 15.500 IN. O/A DIA; 7.750 IN. DIA BOLT CIRCLE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5999-00-051-321410-40450-8S INTERCHANGEABLE
Shielding Gasket,electronic
Amphenol Corp Div Amphenol Aerospace Operations
5133-00-189-9314 INTERCHANGEABLE
Drill,twist
5133-00-228-1325 INTERCHANGEABLE
Drill,twist
5985-00-241-8599768-10 INTERCHANGEABLE
Attenuator,fixed
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
2825-00-379-3570400-08 INTERCHANGEABLE
Wheel,turbine,blade
Siemens Energy, Inc.
5310-00-421-9153 INTERCHANGEABLE
Washer,flat
5905-00-508-0561 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
5360-00-530-840522012A INTERCHANGEABLE
Spring,helical,compression
Brinkley Technology Group Llc Dba Hercules Manufacturing
6625-00-553-0557 INTERCHANGEABLE
Meter,antenna Tilt
3455-00-596-515919646 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
Cross-Reference Index
Part NumberManufacturer
20038 Drs Environmental Systems Inc (USA)
40008 C-Way Industries Inc (CAN)
20038 Engineered Air Systems, Inc. Dba Drs Sustainment Systems (USA)
20038 Hdt Expeditionary Systems Inc (USA)
20038 C-Way Industries Inc (CAN)
Related Parts
5999-00-051-3214INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
10-40450-8S
5133-00-189-9314INTERCHANGEABLE
DRILL,TWIST
5133-00-228-1325INTERCHANGEABLE
DRILL,TWIST
5985-00-241-8599INTERCHANGEABLE
ATTENUATOR,FIXED
768-10
2825-00-379-3570INTERCHANGEABLE
WHEEL,TURBINE,BLADE
400-08
5310-00-421-9153INTERCHANGEABLE
WASHER,FLAT
5905-00-508-0561INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
5360-00-530-8405INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
22012A
6625-00-553-0557INTERCHANGEABLE
METER,ANTENNA TILT
3455-00-596-5159INTERCHANGEABLE
REAMER,MACHINE
19646
5985-00-782-8988INTERCHANGEABLE
MAST SECTION
200-38
5950-00-832-3255INTERCHANGEABLE
COIL,ELECTRICAL

Frequently Asked Questions

What is NSN 4520-01-089-0878?

NSN 4520-01-089-0878 is a Heat Exchanger,heater, manufactured by Drs Environmental Systems Inc, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-089-0878?

NSN 4520-01-089-0878 has 5 cross-referenced part numbers: 20038 (Drs Environmental Systems Inc), 40008 (C-Way Industries Inc), 20038 (Engineered Air Systems, Inc. Dba Drs Sustainment Systems), 20038 (Hdt Expeditionary Systems Inc), 20038 (C-Way Industries Inc).

What NSN replaces 4520-01-089-0878?

There are 12 known substitutes for 4520-01-089-0878: 5999-00-051-3214, 5133-00-189-9314, 5133-00-228-1325 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20038?

Key specifications for 20038: General Characteristics Item Description: 17.500 IN. LG; 15.500 IN. O/A DIA; 7.750 IN. DIA BOLT CIRCLE IN. 1 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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