The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5985-01-297-7619
NSN 5910-01-062-5399
NSN 5930-00-552-1946
NSN 7035-00-205-1932
NSN 5930-00-248-5053
NSN 6130-01-197-1868
NSN 5915-00-296-5031
NSN 5998-01-423-4968
NSN 5895-01-552-8517
NSN 5855-01-610-3506
NSN 4140-01-470-1359
NSN 6645-01-576-9896