The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6145-00-174-9344
NSN 6320-01-445-8192
NSN 5920-00-054-3381
NSN 5915-00-467-6796
NSN 5895-01-575-2267
NSN 5915-00-776-2097
NSN 5910-00-170-5534
NSN 6240-00-372-4841
NSN 6110-01-566-1684
NSN 5930-00-939-1675
NSN 5855-00-821-7512
NSN 5855-01-125-4768