The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5985-01-591-3428
NSN 7035-01-123-8723
NSN 5985-01-516-2297
NSN 7035-00-981-7216
NSN 5915-01-192-0948
NSN 5998-00-941-9279
NSN 5998-00-404-0144
NSN 6645-00-153-3834
NSN 6620-01-447-9186
NSN 2925-01-618-2711
NSN 5998-01-646-4186
NSN 5915-01-117-0047