The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6135-00-613-1068
NSN 5920-01-115-4335
NSN 5990-01-023-3307
NSN 6320-01-466-4175
NSN 6150-01-015-6262
NSN 5930-01-422-3732
NSN 6240-00-407-1024
NSN 6610-01-380-9612
NSN 5975-00-078-9117
NSN 5960-01-146-8707
NSN 5945-01-503-9468
NSN 5915-00-633-1217