Model: S21M

Duct Type Ventilation Heater

Special Features:

Tube has 60 fins per ft; conforms to mil-h-16235c

Properties:

Mounting Type
Ventilation duct
Heat Medium Type
Hot water or steam
Maximum Pressure Limit
35.0 pounds per square inch gage
Duct Height
3.250 inches
Duct Width
6.000 inches
Heat Outlet Quantity
1
Heat Delivery Direction
Horizontal
Heat Discharge Outlet Type
Stationary
Heat Directing Device
Radial diffuser-vertical vanes
Width
13.750 inches
Depth
13.750 inches
Operating Control Type
Any acceptable
Heating Element Type
Hot water coil or steam coil
Inclosure Material
Steel
Heat Delivery Rate
Any acceptable
Height
6.250 inches
Surface Treatment
Zinc
NSN
4520-00-273-1061
Part Number
S21M
Description
Heater,ventilation,duct Type
CAGE
38450

A heat transferring unit utilizing a separate source of steam or hot water as the heat transfer medium. It consists of finned parallel tubes joined together by a header or headers and is designed for installation in the ducts of a forced air circulating system. It may be provided with a flanged outer casing to facilitate mounting of the unit 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 S21M NSN 4520-00-273-1061

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
07531
FIIG:
A01300
Concept No.:
1
App. Key:
J
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
9.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
H

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
062250
UFC:
12590
LTL:
RATING VARIABLE
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 7322900000
  • SITC: 81215
  • End Use: Household appliances
  • NAICS: 333414
  • USDA: 1

Freight Class: Air heaters and hot air distributors, not electrically heated, incorporating a motor-driven fan or blower, and parts thereof, of iron or steel

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