The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6220-01-462-4715
NSN 6320-01-141-3791
NSN 6240-01-220-6066
NSN 6110-00-288-4179
NSN 5895-00-405-2473
NSN 5945-01-098-4848
NSN 6620-01-205-0320
NSN 5895-00-414-5160
NSN 6105-01-065-5608
NSN 5960-01-036-6320
NSN 5965-01-406-6320
NSN 5950-00-107-7321