The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5835-01-023-8733
NSN 6620-01-260-7112
NSN 5950-00-178-0362
NSN 5965-01-200-6613
NSN 5930-00-584-4563
NSN 6150-01-009-2040
NSN 5835-01-511-5337
NSN 6610-01-299-1713
NSN 5975-01-312-3477
NSN 5990-00-254-4825
NSN 6645-01-534-3148
NSN 6610-00-111-3648