PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103296Heater,circulation,air-Gas

Chromalox Inc Dba Chromalox Precision Heat and Control, Inc · NSN 4520-01-252-0746 · FSC 4520 · No Item Name Available
Verified by PartsTable
NSN 4520-01-252-0746 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-252-0746. Primary manufacturer part number: 103296.
Features
  • Heater,circulation,air-Gas — FSC 4520
  • General Characteristics Item Description: STNLS STEEL VESSEL W/NICKEL-IRON-CHROMIUM ELEMENTS; 120 VAC,1.5 KW,SINGLE PHASE; 31.812 IN. O/A H,4.500 IN. DIA,23.000 IN. C TO C DISTANCE BETWEEN 0.750 NPT INLET,OUTLET CONNECTIONS; 750.0 DEG F MAX OPER TEMP VAC
  • 3 verified cross-references
  • Primary manufacturer: Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heater,circulation,air-Gas, cataloged under National Stock Number 4520-01-252-0746, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4520-01-252-0746
Primary Part Number103296
Item NameHeater,circulation,air-Gas
FSC / FSG4520 / 45 — No Item Name Available
ManufacturerChromalox Inc Dba Chromalox Precision Heat and Control, Inc
StatusACTIVE
General Characteristics Item DescriptionSTNLS STEEL VESSEL W/NICKEL-IRON-CHROMIUM ELEMENTS; 120 VAC,1.5 KW,SINGLE PHASE; 31.812 IN. O/A H,4.500 IN. DIA,23.000 IN. C TO C DISTANCE BETWEEN 0.750 NPT INLET,OUTLET CONNECTIONS; 750.0 DEG F MAX OPER TEMP VAC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4320-00-226-8037384546PH INTERCHANGEABLE
Rotor Assembly,pump
Curtiss-Wright Electro-Mechanical Corporation Div Epd
4130-00-777-3596A903-1111 INTERCHANGEABLE
Cooling Coil,air,duct Type
Trane U.s. Inc. Dba the Trane Co Div Trane Headquarters
6210-01-173-6280103296 INTERCHANGEABLE
Bulb,lamp
Lockheed Martin Sippican, Inc. Div Lockheed Martin Marion
5998-01-202-3926103296 INTERCHANGEABLE
Circuit Card Assembly
Aimtron Systems, Llc
Cross-Reference Index
Part NumberManufacturer
103296 PRIMARY Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
GCH-21505-120V Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
GCH-21505 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA)
Related Parts
4320-00-226-8037INTERCHANGEABLE
ROTOR ASSEMBLY,PUMP
384546PH
4130-00-777-3596INTERCHANGEABLE
COOLING COIL,AIR,DUCT TYPE
A903-1111
6210-01-173-6280INTERCHANGEABLE
BULB,LAMP
103296
5998-01-202-3926INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
103296

Frequently Asked Questions

What is NSN 4520-01-252-0746?

NSN 4520-01-252-0746 is a Heater,circulation,air-Gas, 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 4520-01-252-0746?

NSN 4520-01-252-0746 has 3 cross-referenced part numbers: 103296 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), GCH-21505-120V (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), GCH-21505 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).

What NSN replaces 4520-01-252-0746?

There are 4 known substitutes for 4520-01-252-0746: 4320-00-226-8037, 4130-00-777-3596, 6210-01-173-6280 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103296?

Key specifications for 103296: General Characteristics Item Description: STNLS STEEL VESSEL W/NICKEL-IRON-CHROMIUM ELEMENTS; 120 VAC,1.5 KW,SINGLE PHASE; 31.812 IN. O/A H,4.500 IN. DIA,23.000 IN. C TO C DISTANCE BETWEEN 0.750 NPT INLET,OUTLET CONNECTIONS; 750.0 DEG F MAX OPER TEMP VAC. 1 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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