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 6150-01-166-2592
NSN 5999-01-519-2442
NSN 5996-01-535-4343
NSN 2925-01-359-9818
NSN 6320-01-538-4782
NSN 6135-01-532-7655
NSN 7035-00-490-0485
NSN 6150-00-805-0808
NSN 5925-01-566-1871
NSN 5905-01-642-1428
NSN 5930-01-243-8714
NSN 5930-01-388-2146