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 as4520-01-346-0537 ·
4520013460537 ·
NIIN 013460537 ·
01-346-0537 ·
FSC 4520 Space and Water Heating Equipment · CAGE 65586 · 118-045404-037 · 004-620059-000
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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government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
Parameter
Value
NSN
4520-01-346-0537
Primary Part Number
118-045404-037
Item Name
Heating Element,electrical,nonim
FSC / FSG
4520 / 45 — Space and Water Heating Equipment
Manufacturer
Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
Status
ACTIVE
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
Heat Quantity
1
Element Radiation Spectrum
NONINFRARED
Material
COPPER ALLOY AND STEEL CORROSION RESISTING SHEATH
Element Quantity
2
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4520-01-346-0538118-045259-053POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-0539118-050038-143POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-1035004-620059-004POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-1036004-620059-003POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-1037004-620059-013POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-2718118-050038-139POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-346-3139004-620059-011POSSIBLE MATCH
HEATER,SPACE,ELECTRIC
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
Reference documents
Reference
Meaning
004-620059-000
D/9Drawing 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.