The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5905-01-435-6227
NSN 6135-00-377-9165
NSN 6240-00-353-5753
NSN 5998-00-661-0380
NSN 6240-01-511-3754
NSN 5950-01-146-4329
NSN 6135-00-160-7708
NSN 6620-00-708-2688
NSN 6110-00-456-2058
NSN 6135-01-503-1688
NSN 5905-01-107-3119
NSN 5910-00-905-5455