Product Details | STATIONARY DUCT TYPE HEATER

4520-01-212-7550 A device capable of producing heat from gas, liquid fuel, or an electrical heating element designed for permanent installation in sheet metal ducts of a forced air circulating system. It consists of (1) a finned, steel burner tube, a combustion air blower, a control panel, and a constant level fuel supply system or (2) a device having a heating element which when connected to an electrical source, directly imparts heat. It may be provided with a flanged outer casing to facilitate mounting in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.

Part Alternates: EH21H, EH-21H, MILH22594, MIL-H-22594, TFZ21H, TFZ-21H, 106056816000, 106-056816-000, 106056816006, 106-056816-006, 4520-01-212-7550, 01-212-7550, 4520012127550, 012127550

Plumbing, Heating, and Waste Disposal Equipment | Space and Water Heating Equipment

Supply Group (FSG) NSN Assign. NIIN
45 18 JUL 1985 01-212-7550

Demand History | NSN 4520-01-212-7550

Part Number Request Date QTY Origin
4520-01-212-7550 2021-04-91 10 DIBBS
4520-01-212-7550 2015-04-92 10 DIBBS
4520-01-212-7550 2015-03-88 1 DIBBS
4520-01-212-7550 2015-03-81 10 DIBBS
4520-01-212-7550 2015-02-34 5 DIBBS
4520-01-212-7550 2012-09-261 5 DIBBS
4520-01-212-7550 2011-09-265 5 DIBBS
4520-01-212-7550 2011-06-164 4 DIBBS

Cross Reference | NSN 4520-01-212-7550

Part Number Cage Code Manufacturer
106-056816-000 65586 CHROMALOX, INC. DBA OGDEN
106-056816-006 65586 CHROMALOX, INC. DBA OGDEN
EH-21H 17032 VALAD ELECTRIC HEATING CORP.
MIL-H-22594 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
TFZ-21H 74924 INDUSTRIAL ENGINEERING AND EQUIPMENT COMPANY, INCORPORATED

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Technical Data | NSN 4520-01-212-7550

Characteristic Specifications
HEAT DELIVERY RATE 6482.8 BRITISH THERMAL UNIT
CURRENT TYPE AC
VOLTAGE IN VOLTS 115.0
FREQUENCY IN HERTZ 50.0 OR
PHASE THREE
CURRENT RATING IN AMPS 16.5
HEATING ELEMENT TYPE ELECTRIC NONIMMERSION
HEAT MEDIUM TYPE AIR
MOUNTING TYPE VENTILATION DUCT
HEIGHT 6.250 INCHES NOMINAL
WIDTH 13.000 INCHES NOMINAL
DEPTH 6.000 INCHES NOMINAL
INCLOSURE MATERIAL STEEL
SURFACE TREATMENT ZINC
SPECIAL FEATURES MAGNETIC
SPECIFICATION/STANDARD DATA 81349-MIL-H-22594 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA 21EH SIZE OR
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-H-22594

Restrictions/Controls & Freight Information | NSN 4520-01-212-7550

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 114110 AIR CLEANER/DEHUMIDIFIERS,ETC NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 576 unknown
Originating Activity Code AX Defense Supply Center Columbus
Columbus, OH 43216-5000
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 4520-01-212-7550

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative