National Item Identification Number
01-429-8427
014298427
4520-01-429-8427
4520014298427
National Stock Number
Item Name
HEATER,DUCT TYPE,STATIONARY
Federal Supply Class
4520
Description
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.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
MIL-H-22594
MIL-H-22594,SZ22EH,TYPEM
Required Categories
HEAT DELIVERY RATE
CURRENT TYPE
VOLTAGE IN VOLTS
FREQUENCY IN HERTZ
PHASE
C
Required Description
6585.16 BRITISH THERMAL UNIT
AC
440.0
60.0
THREE
4.386
ELECTRIC NONIMMERSI