The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6110-00-961-5204
NSN 6130-00-991-0566
NSN 4140-01-451-9841
NSN 6105-00-952-4524
NSN 6645-01-336-5815
NSN 5935-01-543-0769
NSN 5985-01-473-2846
NSN 5925-01-548-8842
NSN 5960-01-428-7300
NSN 6130-00-081-2186
NSN 6645-01-623-8825
NSN 6135-01-556-7318