The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 4140-01-550-2971
NSN 5905-00-153-2802
NSN 6130-01-579-8878
NSN 5996-01-026-9981
NSN 5855-01-473-2904
NSN 5996-00-104-8119
NSN 6620-01-607-5738
NSN 5985-01-177-2370
NSN 5996-01-333-3419
NSN 5996-01-199-6733
NSN 6685-01-394-3330
NSN 5960-01-444-8163