The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 4140-01-291-8311
NSN 5935-00-707-3274
NSN 5930-01-348-2498
NSN 6135-00-377-9165
NSN 5960-01-215-0992
NSN 6650-01-330-6740
NSN 6610-01-603-0703
NSN 4140-00-511-6652
NSN 5960-01-369-3628
NSN 5915-01-092-9460
NSN 5905-00-327-6913
NSN 6110-01-228-7221