The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6645-01-331-5674
NSN 6105-01-333-1605
NSN 5965-00-267-4173
NSN 5975-01-412-0782
NSN 5895-01-634-0630
NSN 5990-00-394-3987
NSN 6645-00-079-1430
NSN 5998-01-651-9431
NSN 5965-00-342-5126
NSN 6320-01-600-5808
NSN 4140-01-213-2910
NSN 7035-00-001-4586