PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A7Heating Element,electrical,nonim

Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · NSN 4520-00-937-3011 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-00-937-3011 — this item is cataloged by the U.S. Government under National Stock Number 4520-00-937-3011. Primary manufacturer part number: A7.
Features
  • Heating Element,electrical,nonim — FSC 4520
  • Maximum Wattage Rating in Watts: 450.0 SINGLE VOLTAGE
  • Element Quantity: 1
  • Outside Diameter: 7.737 INCHES NOMINAL IN
  • Heat Quantity: 1
  • Nominal Thread Size: 0.250 INCHES STUD IN
  • Element Connection Style: STUD TYPE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) STUD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-00-937-3011, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-00-937-3011
Primary Part NumberA7
Item NameHeating Element,electrical,nonim
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusACTIVE
Maximum Wattage Rating in Watts450.0 SINGLE VOLTAGE
Element Quantity1
Outside Diameter7.737 INCHES NOMINAL IN
Heat Quantity1
Nominal Thread Size0.250 INCHES STUD IN
Element Connection StyleSTUD TYPE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) STUD
Element Radiation SpectrumNONINFRARED
Terminal Quantity2
Terminal Length0.375 INCHES NOMINAL IN
Thread Quantity20.0 PER INCH STUD
Body StyleSINGLE HEAT RING
Voltage in Volts and Current Type110.0 AC SINGLE VOLTAGE
PhaseNOT RATED SINGLE VOLTAGE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3455-00-021-2412 INTERCHANGEABLE
File,rotary
5365-00-064-4381 INTERCHANGEABLE
Spacer,sleeve
3010-00-088-4620 INTERCHANGEABLE
Gear Assembly,speed Decreaser
5940-00-111-3184A79 INTERCHANGEABLE
Terminal,lug
Abb Installation Products Inc
3110-00-156-5309A7 INTERCHANGEABLE
Bearing,ball,annular
Nsk Uk Ltd
5920-00-228-7919 INTERCHANGEABLE
Fuse,cartridge
6685-00-447-1960107001 INTERCHANGEABLE
Thermometer,self-Indicating
Aqua-Chem, Inc. Dba Aqua-Chem Inc
5120-00-516-35369920-1-7 INTERCHANGEABLE
Tool Set,fastener Installation
Southco Inc
6675-00-624-4053A7 INTERCHANGEABLE
Autographic Instrument,photogram
Leica Geosystems Ag Dba Leica Geosystems Sa
4730-00-727-9627 INTERCHANGEABLE
Clamp,hose
Cross-Reference Index
Part NumberManufacturer
853680200 Bomag Usa Sub of United Dominion Industries Ltd (USA)
A7 PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
Related Parts
3455-00-021-2412INTERCHANGEABLE
FILE,ROTARY
5365-00-064-4381INTERCHANGEABLE
SPACER,SLEEVE
3010-00-088-4620INTERCHANGEABLE
GEAR ASSEMBLY,SPEED DECREASER
5940-00-111-3184INTERCHANGEABLE
TERMINAL,LUG
A79
3110-00-156-5309INTERCHANGEABLE
BEARING,BALL,ANNULAR
A7
5920-00-228-7919INTERCHANGEABLE
FUSE,CARTRIDGE
6685-00-447-1960INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
107001
5120-00-516-3536INTERCHANGEABLE
TOOL SET,FASTENER INSTALLATION
9920-1-7
6675-00-624-4053INTERCHANGEABLE
AUTOGRAPHIC INSTRUMENT,PHOTOGRAM
A7
4730-00-727-9627INTERCHANGEABLE
CLAMP,HOSE
3441-01-005-6048INTERCHANGEABLE
BENDING MACHINE,BAR
A7
5998-01-264-6590INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
107329-901

Frequently Asked Questions

What is NSN 4520-00-937-3011?

NSN 4520-00-937-3011 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: active.

What are the part numbers for NSN 4520-00-937-3011?

NSN 4520-00-937-3011 has 2 cross-referenced part numbers: 853680200 (Bomag Usa Sub of United Dominion Industries Ltd), A7 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).

What NSN replaces 4520-00-937-3011?

There are 12 known substitutes for 4520-00-937-3011: 3455-00-021-2412, 5365-00-064-4381, 3010-00-088-4620 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A7?

Key specifications for A7: Maximum Wattage Rating in Watts: 450.0 SINGLE VOLTAGE; Element Quantity: 1; Outside Diameter: 7.737 INCHES NOMINAL IN; Heat Quantity: 1. 14 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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