The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5975-00-351-8434
NSN 6110-00-752-2757
NSN 6110-00-518-2998
NSN 6240-00-885-4049
NSN 6240-01-437-6547
NSN 7035-00-232-4043
NSN 5996-01-235-1643
NSN 6110-00-363-3974
NSN 6150-00-633-7160
NSN 6650-01-459-2261
NSN 2925-01-440-9912
NSN 6110-00-730-8143