PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

319-873020-003Heating Element,electrical,nonim

Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · NSN 4520-01-101-0763 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-101-0763 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-101-0763. Primary manufacturer part number: 319-873020-003.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Heat Quantity: 1
  • Material: NICKEL ALLOY OR STEEL CORROSION RESISTING SHEATH
  • Frequency in Hertz: 60.0
  • Length: 12.468 INCHES NOMINAL IN
  • Phase: SINGLE SINGLE VOLTAGE
  • Thread Series Designator: UNF STUD
  • Terminal Length: 0.813 INCHES NOMINAL IN
Applications
  • Applications requiring Nickel Alloy or Steel Corrosion Resisting Sheath construction
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-101-0763, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4520-01-101-0763
Primary Part Number319-873020-003
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusCANCELLED
Heat Quantity1
MaterialNICKEL ALLOY OR STEEL CORROSION RESISTING SHEATH
Frequency in Hertz60.0
Length12.468 INCHES NOMINAL IN
PhaseSINGLE SINGLE VOLTAGE
Thread Series DesignatorUNF STUD
Terminal Length0.813 INCHES NOMINAL IN
Body StyleTUBULAR, SINGLE COIL DOUBLE TERMINALS
Element Connection StyleSTUD TYPE
Effective Heating Length10.781 INCHES NOMINAL IN
Element Radiation SpectrumNONINFRARED
Element Quantity1
Terminal Quantity2
Voltage in Volts and Current Type120.0 AC SINGLE VOLTAGE
Thread Quantity32.0 PER INCH STUD
Nominal Thread Size0.190 INCHES STUD IN
Maximum Wattage Rating in Watts700.0 SINGLE VOLTAGE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5815-00-703-0182SM-B-186991 INTERCHANGEABLE
Teletypewriter Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
8340-00-951-6425 INTERCHANGEABLE
Tent Section
4520-00-997-9932 INTERCHANGEABLE
Heating Element,electrical,nonim
5930-01-496-763254943 ITEM 1 INTERCHANGEABLE
Switch,flow
Electro Impulse Laboratory Inc Dba Electro Impulse Inc
4820-01-497-0681MCV-0250-SS-T-1/2 TYPE 2 INTERCHANGEABLE
Valve,check
International Valve Corp Dba Check-All Valve Mfg. Co.
5995-01-687-988954943 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Logos Imaging Llc
Cross-Reference Index
Part NumberManufacturer
C4524-564-1 Drs Environmental Systems Inc (USA)
C4524-564-1 Hdt Expeditionary Systems Inc (USA)
54943 Drs Environmental Systems Inc (USA)
C4524-564-1 Keco Industries, Inc. (USA)
54943 Hdt Expeditionary Systems Inc (USA)
319-873020-003 PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
54943 Keco Industries, Inc. (USA)
26SS3-29C Indeeco Llc Dba Indeeco (USA)
Related Parts
5815-00-703-0182INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
SM-B-186991
8340-00-951-6425INTERCHANGEABLE
TENT SECTION
4520-00-997-9932INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5930-01-496-7632INTERCHANGEABLE
SWITCH,FLOW
54943 ITEM 1
4820-01-497-0681INTERCHANGEABLE
VALVE,CHECK
MCV-0250-SS-T-1/2 TYPE 2
5995-01-687-9889INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
54943

Frequently Asked Questions

What is NSN 4520-01-101-0763?

NSN 4520-01-101-0763 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4520-01-101-0763?

NSN 4520-01-101-0763 has 8 cross-referenced part numbers: C4524-564-1 (Drs Environmental Systems Inc), C4524-564-1 (Hdt Expeditionary Systems Inc), 54943 (Drs Environmental Systems Inc), C4524-564-1 (Keco Industries, Inc.), 54943 (Hdt Expeditionary Systems Inc) and 3 more.

What NSN replaces 4520-01-101-0763?

There are 6 known substitutes for 4520-01-101-0763: 5815-00-703-0182, 8340-00-951-6425, 4520-00-997-9932 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 319-873020-003?

Key specifications for 319-873020-003: Heat Quantity: 1; Material: NICKEL ALLOY OR STEEL CORROSION RESISTING SHEATH; Frequency in Hertz: 60.0; Length: 12.468 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4520-01-101-0763 still in active supply?

NSN 4520-01-101-0763 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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