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		                        | National Stock Number:
 4140-01-475-8321
 
 Federal Supply Class:
 4140
 
 National Item Identification Number:
 014758321
 
 Description:
 FAN,VENTILATING
 
 Detail:
 A nonpositive displacement mechanical device having either an axial or centrifugal fan impeller. It is designed to move free air or gas from indoors to outdoors or vice versa over a wide range of volumes at low pressures. It is supported by a ring, plate, or shroud or may be inclosed in a housing. It is designed for installation in a window, roof or wall opening, or the like.
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 Manufacturer Information:
 
 | 751-7410-001 | 13499 | ROCKWELL COLLINS, INC. | 
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