The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6105-00-337-0904
NSN 5965-00-431-2492
NSN 6685-01-106-0962
NSN 5910-01-209-4544
NSN 5975-00-411-0486
NSN 5998-01-044-2702
NSN 5960-00-852-3781
NSN 5935-00-970-2726
NSN 4140-01-550-6540
NSN 5998-01-536-6491
NSN 6105-01-121-8734
NSN 5905-00-226-0194