The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6620-01-011-3449
NSN 5930-01-400-6126
NSN 6150-00-179-9876
NSN 6620-01-275-9777
NSN 6620-01-047-5831
NSN 6150-00-548-8718
NSN 5915-01-371-2906
NSN 6220-01-634-0660
NSN 6145-00-078-9917
NSN 5975-00-308-2200
NSN 5960-01-407-1350
NSN 5930-01-522-6589