The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5930-01-088-6920
NSN 5835-00-322-5654
NSN 4140-01-236-5694
NSN 5835-00-104-2511
NSN 5930-01-565-0470
NSN 5855-01-366-2429
NSN 5960-01-496-3712
NSN 4140-01-486-8261
NSN 6240-01-023-5536
NSN 5930-01-396-5589
NSN 6110-00-071-8351
NSN 5945-01-006-0056