The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6610-01-555-8791
NSN 6240-00-617-9599
NSN 6130-01-165-1127
NSN 5998-01-269-1781
NSN 6620-00-764-3057
NSN 5895-01-497-4807
NSN 6150-01-516-2846
NSN 6150-01-186-6634
NSN 5920-00-281-2488
NSN 5910-00-589-5193
NSN 5985-01-482-7488
NSN 6145-01-605-6583