The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 7035-00-565-9623
NSN 6220-00-228-3362
NSN 2925-01-252-8049
NSN 5920-01-630-7299
NSN 5905-00-384-0449
NSN 6150-00-960-3256
NSN 5920-01-643-5913
NSN 6610-01-068-7974
NSN 5935-01-371-3005
NSN 5895-00-596-8678
NSN 6240-01-593-2170
NSN 5998-01-032-3452