The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 4140-01-650-1208
NSN 5915-01-334-7440
NSN 7035-01-508-5064
NSN 6110-01-529-7654
NSN 5960-01-250-1095
NSN 6110-01-171-9593
NSN 6135-01-438-0228
NSN 5990-01-106-3786
NSN 6105-01-301-8221
NSN 5990-01-411-5930
NSN 5960-00-841-9227
NSN 5905-01-131-6712