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 5935-01-245-2618
NSN 6110-01-254-7971
NSN 5975-01-659-4762
NSN 5855-01-305-1628
NSN 5835-01-441-4746
NSN 6320-01-399-6177
NSN 6135-00-297-8873
NSN 5905-01-564-8528
NSN 5950-01-056-6879
NSN 2925-01-302-3098
NSN 6320-01-379-1182
NSN 6620-01-068-0046