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 6610-01-262-3467
NSN 5965-01-209-2838
NSN 5895-00-757-5367
NSN 5985-01-415-0274
NSN 6130-01-486-7918
NSN 5930-01-309-0456
NSN 6320-01-429-9871
NSN 5910-01-328-9753
NSN 6685-01-388-2574
NSN 6685-01-374-0837
NSN 5945-01-102-7707
NSN 4140-00-412-2408