The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6650-00-167-7972
NSN 6110-01-408-0403
NSN 5930-01-512-0289
NSN 5925-01-237-8109
NSN 5996-01-088-7074
NSN 5935-01-390-9165
NSN 5996-01-341-7403
NSN 5930-01-460-6993
NSN 5950-00-983-0807
NSN 5950-01-330-9168
NSN 5960-00-188-8648
NSN 6135-01-167-7604