The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5950-01-287-4308
NSN 6150-01-440-1947
NSN 6610-01-436-6884
NSN 6145-00-830-8210
NSN 5835-01-110-0697
NSN 5835-00-427-2772
NSN 6145-01-377-9935
NSN 5996-01-243-4072
NSN 5920-01-459-4588
NSN 6105-00-246-4425
NSN 5985-00-314-0831
NSN 5998-00-356-3188