National Stock Number: 2040-99-148-1639
Federal Supply Class: 2040
National Item Identification Number: 991481639
Description: TERMINAL,VENTILATIO
Detail: A FABRICATED DEVICE, GENERALLY CONSTRUCTED WITH A FLARED END AND A STRAIGHT OR ELBOW TYPE BODY. IT MAY CONTAIN A DAMPER AND IS DESIGNED TO BE USED AT THE END OF A VENTILATING DUCT TO CONTROL THE QUANTITY AND/OR THE DIRECTION OF AIR FLOW.
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