The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5910-01-477-3514
NSN 7035-01-356-4025
NSN 5996-00-866-1356
NSN 4140-01-436-0467
NSN 6320-01-072-2073
NSN 5935-01-211-6094
NSN 5975-01-101-2879
NSN 6320-00-646-3311
NSN 6610-01-633-8931
NSN 5999-00-074-5879
NSN 5985-01-014-4071
NSN 5996-01-299-7792