The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6150-00-551-3135
NSN 6145-00-366-5790
NSN 6620-00-236-7148
NSN 7035-00-117-0418
NSN 5996-01-641-7919
NSN 5999-01-364-1949
NSN 7035-00-153-3826
NSN 5996-01-329-8626
NSN 5998-01-356-7408
NSN 5990-00-610-2826
NSN 5990-00-959-3312
NSN 5985-01-362-0599