The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 7035-01-462-5766
NSN 6130-00-942-2886
NSN 6240-01-245-0137
NSN 6145-01-310-5897
NSN 5999-00-633-7592
NSN 5910-01-188-6137
NSN 5990-01-372-6047
NSN 6685-01-374-2088
NSN 6130-00-488-6965
NSN 5910-00-238-4600
NSN 5915-01-630-0872
NSN 6130-01-101-0516