FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal
Government record, cited
Also searched as4520-01-030-1794 ·
4520010301794 ·
NIIN 010301794 ·
01-030-1794 ·
FSC 4520 Space and Water Heating Equipment · 106-027219-000 · 118-027221-004
Voltage in Volts and Current Type: 254.0 AC SINGLE VOLTAGE
Body Style: FINNED, TUBULAR, U SHAPED
Maximum Wattage Rating in Watts: 600.0 SINGLE VOLTAGE
Identification
NSN: 4520-01-030-1794
NIIN: 010301794
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
General Description
The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-030-1794, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government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
4520-01-030-1794
Item Name
Heating Element,electrical,nonim
FSC / FSG
4520 / 45 — Space and Water Heating Equipment
Status
ACTIVE
Phase
THREE SINGLE VOLTAGE
Frequency in Hertz
60.0
Terminal Quantity
2
Length
9.938 INCHES NOMINAL IN
Voltage in Volts and Current Type
254.0 AC SINGLE VOLTAGE
Body Style
FINNED, TUBULAR, U SHAPED
Maximum Wattage Rating in Watts
600.0 SINGLE VOLTAGE
Terminal Length
0.625 INCHES NOMINAL IN
Mounting Facility Length
0.750 INCHES NOMINAL IN
Element Connection Style
STUD TYPE
Mounting Method Style
AXIAL STUD TYPE MOUNTING FACILITY
Nominal Thread Size
1.000 INCHES MOUNTING FACILITY IN
Nominal Thread Size
0.250 INCHES STUD IN
Heat Quantity
1
Element Radiation Spectrum
NONINFRARED
Material
NICKEL ALLOY A SHEATH
Thread Series Designator
UNF STUD
Thread Series Designator
NPT MOUNTING FACILITY
Thread Quantity
28.0 PER INCH STUD
Thread Quantity
11.5 PER INCH MOUNTING FACILITY
Element Quantity
1
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 Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4520-01-030-1795118-027221-005POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-030-1798118-027221-008POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-030-2660118-027221-009POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-030-2661118-027221-001POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-030-4273106-027219-000POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
4520-01-047-0388118-027221-002POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
106-027219-000
3/1Design control — primary reference
Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
118-027221-004
5/9Secondary reference
Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
Related Parts
4520-01-030-1795POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
118-027221-005
4520-01-030-1798POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
118-027221-008
4520-01-030-2660POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
118-027221-009
4520-01-030-2661POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
118-027221-001
4520-01-030-4273POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
106-027219-000
4520-01-047-0388POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
118-027221-002
Frequently Asked Questions
What is NSN 4520-01-030-1794?
NSN 4520-01-030-1794 is a Heating Element,electrical,nonim, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What NSN replaces 4520-01-030-1794?
6 possible matches (shared part number, not a government interchangeability claim): 4520-01-030-1795, 4520-01-030-1798, 4520-01-030-2660. Verify interchangeability with system specifications before substitution.
What are the specifications of 4520-01-030-1794?
Key specifications for 4520-01-030-1794: Phase: THREE SINGLE VOLTAGE; Frequency in Hertz: 60.0; Terminal Quantity: 2; Length: 9.938 INCHES NOMINAL IN. 21 specifications are documented in the U.S. Government catalog.
Is NSN 4520-01-030-1794 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.