The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6685-01-606-9171
NSN 5990-01-452-0911
NSN 5935-01-230-8167
NSN 5990-01-164-8673
NSN 6240-01-513-2732
NSN 5920-00-632-1308
NSN 5905-01-651-7432
NSN 5905-00-314-3564
NSN 5835-01-552-2643
NSN 5965-00-934-3495
NSN 6620-00-893-1303
NSN 5925-01-274-2263