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 6220-01-102-9027
NSN 6220-00-166-5773
NSN 5915-00-457-4494
NSN 6145-01-401-3713
NSN 6150-01-341-3416
NSN 5999-01-054-3858
NSN 2925-00-420-8151
NSN 6650-01-300-1667
NSN 5975-01-578-8408
NSN 5910-00-693-4589
NSN 6645-01-535-7136
NSN 6240-01-461-9635