The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6685-01-553-9112
NSN 6105-00-468-6323
NSN 5950-00-617-7214
NSN 5920-01-315-5795
NSN 5998-00-188-3809
NSN 6610-01-553-3764
NSN 5950-01-179-7343
NSN 5990-00-932-3070
NSN 5945-01-437-2696
NSN 5985-00-618-9436
NSN 6220-00-328-7231
NSN 5985-00-805-5690