National Item Identification Number
00-079-3779
000793779
1660-00-079-3779
1660000793779
National Stock Number
Item Name
TURBINE,AIRCRAFT COOLING
Federal Supply Class
1660
Description
A nonpositive displacement mechanical device designed to provide cool air in aircraft air conditioning systems. Cool air or reduction in temperature is obtained when the heat or energy of compressed air is removed by converting it to work or mechanical energy to drive an impeller wheel. Compressed air is directed through nozzle vanes and impinged upon the blades of a turbine wheel creating rotary motion which drives an impeller wheel. Consists of an impeller wheel, a turbine wheel matched with a nozzle ring on a bearing mounted shaft within a scroll type housing(s).
Commercial and Government Entity Code (Supplier Data)
70210
98897
Reference Numbers (Part Numbers)
203805-5-1
4A90101-101D
Required Categories
GENERAL CHARACTERISTICS ITEM DESCRIPTION
REFERENCE NUMBER DIFFERENTIATING CHARA
Required Description
13.25 IN. MAX LG,10.07 IN. MAX H
AS MODIFIED BY SOURCE CONTROL DWG NO. 4A90101