4520-00-219-7968 (H4607ANDTYPEH1ANDCLASS1)
NSN 4520-00-219-7968 (NIIN 00-219-7968) is a portable duct type heater in Federal Supply Class 4520, Space And Water Heating Equipment — a heater equipped with integral connection(s) for attaching duct(s) to direct heat to engine surface, railroad cars, warehouses, tents, and the like. Manufacturer part number H4607ANDTYPEH1ANDCLASS1 (Military Specifications, CAGE 81349); also referenced as 332090 (Department Of The Air Force).
Key specs: thermostatic operating control type; full characteristics table below. NIIN assigned January 1963; DEMIL A (none required); export Schedule B 7322.90.0000; ships at 749 lb / 119.8873 cu ft.