The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6240-01-252-9374
NSN 6110-01-347-3599
NSN 6620-00-740-3699
NSN 6150-00-419-4115
NSN 6105-01-102-6643
NSN 5935-01-189-8058
NSN 5935-00-206-1400
NSN 5935-00-127-8317
NSN 6650-01-068-3997
NSN 5920-00-226-0227
NSN 5930-00-283-4250
NSN 6135-00-203-9645