The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5965-01-521-3224
NSN 5925-00-284-3726
NSN 5999-01-619-1290
NSN 4140-01-345-4212
NSN 5895-01-229-1201
NSN 5950-01-491-1525
NSN 5996-00-456-0895
NSN 5999-01-062-0302
NSN 6110-00-623-7952
NSN 6220-01-335-0201
NSN 6650-00-400-2625
NSN 5910-00-106-1398