PartsTable TECHNICAL DATA SHEET
NSN 4520-01-346-0537Government record, cited

Heating Element, Electrical, Nonim4520-01-346-0537

NSN 4520-01-346-0537 · NIIN 013460537 · Part number 118-045404-037
Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 65586
Government record, cited
NSN 4520-01-346-0537 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-346-0537. Manufacturer of record part number: 118-045404-037.
Also searched as  4520-01-346-0537 · 4520013460537 · NIIN 013460537 · 01-346-0537 · FSC 4520 Space and Water Heating Equipment · CAGE 65586 · 118-045404-037 · 004-620059-000
Nearby stock numbers  ·
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Phase: SINGLE SINGLE VOLTAGE
  • Frequency in Hertz: 60.0
  • Voltage in Volts and Current Type: 110.0 AC SINGLE VOLTAGE
  • Body Style: TUBULAR, SINGLE COIL, DOUBLE TERMINALS
  • Maximum Wattage Rating in Watts: 1050.0 SINGLE VOLTAGE
  • Element Connection Style: STUD TYPE
  • Mounting Method Style: TERMINAL MOUNTED
Identification
  • NSN: 4520-01-346-0537
  • NIIN: 013460537
  • FSC: 4520 — Space and Water Heating Equipment
  • FSG: 45 — Plumbing, Heating, and Waste Disposal
  • Primary part number: 118-045404-037
  • Manufacturer: Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-346-0537, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-346-0537
Primary Part Number118-045404-037
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — Space and Water Heating Equipment
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusACTIVE
PhaseSINGLE SINGLE VOLTAGE
Frequency in Hertz60.0
Voltage in Volts and Current Type110.0 AC SINGLE VOLTAGE
Body StyleTUBULAR, SINGLE COIL, DOUBLE TERMINALS
Maximum Wattage Rating in Watts1050.0 SINGLE VOLTAGE
Element Connection StyleSTUD TYPE
Mounting Method StyleTERMINAL MOUNTED
Heat Quantity1
Element Radiation SpectrumNONINFRARED
MaterialCOPPER ALLOY AND STEEL CORROSION RESISTING SHEATH
Element Quantity2
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4520-01-346-0538118-045259-053 POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-0539118-050038-143 POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-1035004-620059-004 POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-1036004-620059-003 POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-1037004-620059-013 POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-2718118-050038-139 POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-3139004-620059-011 POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
Cross-Reference Index
Part NumberManufacturer
118-045404-037 PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
Reference documents
ReferenceMeaning
004-620059-000 D/9 Drawing number reference only
Chromalox Inc
Related Parts
4520-01-346-0538POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
118-045259-053
4520-01-346-0539POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
118-050038-143
4520-01-346-1035POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
004-620059-004
4520-01-346-1036POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
004-620059-003
4520-01-346-1037POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
004-620059-013
4520-01-346-2718POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
118-050038-139
4520-01-346-3139POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
004-620059-011

Frequently Asked Questions

What is NSN 4520-01-346-0537?

NSN 4520-01-346-0537 is a Heating Element,electrical,nonim, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 4520, Space and Water Heating Equipment. Status: active.

What part numbers are listed for NSN 4520-01-346-0537?

NSN 4520-01-346-0537 has 1 manufacturer part number on file: 118-045404-037 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).

What NSN replaces 4520-01-346-0537?

7 possible matches (shared part number, not a government interchangeability claim): 4520-01-346-0538, 4520-01-346-0539, 4520-01-346-1035. Verify interchangeability with system specifications before substitution.

What are the specifications of 118-045404-037?

Key specifications for 118-045404-037: Phase: SINGLE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Voltage in Volts and Current Type: 110.0 AC SINGLE VOLTAGE; Body Style: TUBULAR, SINGLE COIL, DOUBLE TERMINALS. 11 specifications are documented in the U.S. Government catalog.

Is NSN 4520-01-346-0537 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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