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 6110-01-556-4312
NSN 6135-00-274-4037
NSN 5855-00-973-5717
NSN 6645-00-772-0532
NSN 5998-00-884-2429
NSN 5835-01-449-7511
NSN 5996-01-143-2583
NSN 5855-00-256-5562
NSN 5996-00-876-6631
NSN 5855-00-156-5489
NSN 6645-01-219-5911
NSN 5996-00-450-9875