The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6620-01-461-6427
NSN 5920-00-271-3217
NSN 2925-01-307-2637
NSN 5920-01-060-7689
NSN 5915-00-468-0086
NSN 6110-01-577-9692
NSN 6145-00-811-2422
NSN 5855-00-014-5008
NSN 6145-00-990-9700
NSN 4140-01-284-3198
NSN 5855-01-435-2772
NSN 5920-01-420-5768