The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5915-00-410-8874
NSN 5960-01-339-0008
NSN 6620-01-053-6650
NSN 5935-00-175-5966
NSN 5965-00-879-7287
NSN 5855-00-494-9581
NSN 5999-00-153-9671
NSN 2925-01-572-9472
NSN 5835-01-332-2867
NSN 5990-01-294-6198
NSN 5945-01-116-2097
NSN 6685-00-621-5011