The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6320-01-371-3047
NSN 7035-01-055-6806
NSN 6620-01-098-2960
NSN 5925-01-135-5272
NSN 5915-01-029-2665
NSN 5930-00-626-9806
NSN 6105-01-104-5214
NSN 6620-00-901-7848
NSN 6320-00-823-2015
NSN 5960-01-181-2143
NSN 5835-01-149-6855
NSN 5975-01-592-4909