PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

53403Heating Element,electrical,nonim

Indeeco Llc Dba Indeeco · NSN 4520-01-377-7440 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-377-7440 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-377-7440. Primary manufacturer part number: 53403.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Material: STEEL CORROSION RESISTING SHEATH
  • Watt Density Rating: 12.82 PER SQUARE INCH SINGLE VOLTAGE
  • Voltage in Volts and Current Type: 480.0 AC SINGLE VOLTAGE
  • Terminal Quantity: 2
  • Body Style: FINNED, TUBULAR, U SHAPED
  • Heat Control Type: THERMAL CUTOUT SWITCH
  • Terminal Box Environmental Protection: STANDARD
Applications
  • Applications requiring Steel Corrosion Resisting Sheath construction
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-377-7440, 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 Indeeco Llc Dba Indeeco. Government technical data includes 11 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-377-7440
Primary Part Number53403
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerIndeeco Llc Dba Indeeco
StatusACTIVE
MaterialSTEEL CORROSION RESISTING SHEATH
Watt Density Rating12.82 PER SQUARE INCH SINGLE VOLTAGE
Voltage in Volts and Current Type480.0 AC SINGLE VOLTAGE
Terminal Quantity2
Body StyleFINNED, TUBULAR, U SHAPED
Heat Control TypeTHERMAL CUTOUT SWITCH
Terminal Box Environmental ProtectionSTANDARD
Element Connection StyleWIRE LEAD W/TERMINAL LUG
Maximum Wattage Rating in Watts1400.0 SINGLE VOLTAGE
Element Quantity6
Element Radiation SpectrumNONINFRARED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1610-00-119-706253403 INTERCHANGEABLE
Sleeve,dome Relief
Hamilton Sundstrand Corporation Dba Collins Aerospace
6675-00-201-3869 INTERCHANGEABLE
Table,drawing
3455-00-222-92191-1561-0212 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
New York Twist Drill Inc
5998-01-097-785253403 INTERCHANGEABLE
Printed Circuit Board
Unitron International Systems Inc.
5995-01-257-521953403 INTERCHANGEABLE
Cable Assembly,radio Frequency
Semflex, Inc.
Cross-Reference Index
Part NumberManufacturer
53403 PRIMARY Indeeco Llc Dba Indeeco (USA)
Related Parts
1610-00-119-7062INTERCHANGEABLE
SLEEVE,DOME RELIEF
53403
6675-00-201-3869INTERCHANGEABLE
TABLE,DRAWING
3455-00-222-9219INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
1-1561-0212
5998-01-097-7852INTERCHANGEABLE
PRINTED CIRCUIT BOARD
53403
5995-01-257-5219INTERCHANGEABLE
CABLE ASSEMBLY,RADIO FREQUENCY
53403

Frequently Asked Questions

What is NSN 4520-01-377-7440?

NSN 4520-01-377-7440 is a Heating Element,electrical,nonim, manufactured by Indeeco Llc Dba Indeeco, classified under FSC 4520 (No Item Name Available). Status: active.

What are the part numbers for NSN 4520-01-377-7440?

NSN 4520-01-377-7440 has 1 cross-referenced part number: 53403 (Indeeco Llc Dba Indeeco).

What NSN replaces 4520-01-377-7440?

There are 5 known substitutes for 4520-01-377-7440: 1610-00-119-7062, 6675-00-201-3869, 3455-00-222-9219 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 53403?

Key specifications for 53403: Material: STEEL CORROSION RESISTING SHEATH; Watt Density Rating: 12.82 PER SQUARE INCH SINGLE VOLTAGE; Voltage in Volts and Current Type: 480.0 AC SINGLE VOLTAGE; Terminal Quantity: 2. 11 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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