PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20446Heating Element,electrical,immer

Gas Turbine Efficiency Ab Gte · NSN 4520-01-540-2321 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-540-2321 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-540-2321. Primary manufacturer part number: 20446.
Features
  • Heating Element,electrical,immer — FSC 4520
  • Element Radiation Spectrum: NEAR INFRARED
  • Phase: THREE THIRD VOLTAGE
  • Voltage in Volts and Current Type: 440.0 AC FIRST VOLTAGE
  • Maximum Wattage Rating in Watts: 3.0 ALL VOLTAGES
  • Frequency in Hertz: 60.0
  • 3 verified cross-references
  • Primary manufacturer: Gas Turbine Efficiency Ab Gte
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heating Element,electrical,immer, cataloged under National Stock Number 4520-01-540-2321, 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 Gas Turbine Efficiency Ab Gte. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-540-2321
Primary Part Number20446
Item NameHeating Element,electrical,immer
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerGas Turbine Efficiency Ab Gte
StatusACTIVE
Element Radiation SpectrumNEAR INFRARED
PhaseTHREE THIRD VOLTAGE
Voltage in Volts and Current Type440.0 AC FIRST VOLTAGE
Maximum Wattage Rating in Watts3.0 ALL VOLTAGES
Frequency in Hertz60.0
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5985-00-140-8316539071-2 INTERCHANGEABLE
Attenuator,fixed
Raytheon Company Dba Raytheon
5935-00-241-0257MS3106A24-15P INTERCHANGEABLE
Connector,plug,electrical
Sae International Dba Sae International
5310-00-434-4287 INTERCHANGEABLE
Washer,flat
5950-00-646-122220446 INTERCHANGEABLE
Transformer,power
Gte Products Corp Sylvania Miniature Lighting Div
Cross-Reference Index
Part NumberManufacturer
20446 Gas Turbine Efficiency Ab Gte Dba Engineering Div Main Office (SWE)
20446 PRIMARY Gas Turbine Efficiency Ab Gte (SWE)
40071478 Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt) (GBR)
Related Parts
5985-00-140-8316INTERCHANGEABLE
ATTENUATOR,FIXED
539071-2
5935-00-241-0257INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
MS3106A24-15P
5310-00-434-4287INTERCHANGEABLE
WASHER,FLAT
5950-00-646-1222INTERCHANGEABLE
TRANSFORMER,POWER
20446

Frequently Asked Questions

What is NSN 4520-01-540-2321?

NSN 4520-01-540-2321 is a Heating Element,electrical,immer, manufactured by Gas Turbine Efficiency Ab Gte, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-540-2321?

NSN 4520-01-540-2321 has 3 cross-referenced part numbers: 20446 (Gas Turbine Efficiency Ab Gte Dba Engineering Div Main Office), 20446 (Gas Turbine Efficiency Ab Gte), 40071478 (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)).

What NSN replaces 4520-01-540-2321?

There are 4 known substitutes for 4520-01-540-2321: 5985-00-140-8316, 5935-00-241-0257, 5310-00-434-4287 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20446?

Key specifications for 20446: Element Radiation Spectrum: NEAR INFRARED; Phase: THREE THIRD VOLTAGE; Part Name Assigned by Controlling Agency: TANK HEATER; Voltage in Volts and Current Type: 440.0 AC FIRST VOLTAGE. 8 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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