The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5960-01-339-3037
NSN 6685-01-348-7639
NSN 7035-00-408-8170
NSN 6150-00-078-7064
NSN 5996-01-515-5770
NSN 5935-01-144-5634
NSN 6645-01-655-8115
NSN 6135-01-299-7252
NSN 6650-01-611-2795
NSN 6110-00-882-6286
NSN 5999-00-155-3088
NSN 5985-01-199-1456