A balloon designed to have a predetermined rate of free ascent when inflated with a specific volume of a lighter-than-air gas.
Classification: Surveying, hydrographic, oceanographic, hydrological or meteorological instruments and appliances, excluding compasses and rangefinders, nesoi
NSN 6110-01-332-2056
NSN 6105-00-186-0161
NSN 5950-01-500-0092
NSN 5935-00-702-9116
NSN 5998-00-165-5848
NSN 5965-01-424-1096
NSN 6685-01-634-0611
NSN 6220-01-113-7501
NSN 6650-00-729-6745
NSN 5925-01-547-4304
NSN 6145-01-628-3919
NSN 5930-01-213-1903