The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5925-00-837-8964
NSN 6645-01-366-5033
NSN 6620-00-280-2874
NSN 6135-01-414-8831
NSN 5895-01-412-9870
NSN 6145-01-523-6378
NSN 5855-01-496-4105
NSN 5960-00-945-0390
NSN 6240-01-177-6386
NSN 6150-00-891-6218
NSN 6105-00-217-0993
NSN 5935-01-343-8193