The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5935-01-459-8353
NSN 5960-01-461-1384
NSN 5895-01-327-9653
NSN 5835-01-595-4099
NSN 7035-00-470-4977
NSN 5960-01-300-3506
NSN 5910-00-405-6648
NSN 6105-00-352-9481
NSN 5975-00-600-5847
NSN 5945-01-425-1326
NSN 5895-01-288-4046
NSN 6145-01-530-0797