The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6110-00-170-6520
NSN 5998-01-004-3391
NSN 6320-00-593-0379
NSN 6105-00-135-5289
NSN 5935-01-433-4648
NSN 5905-00-050-0405
NSN 7035-00-543-3272
NSN 4140-00-078-9357
NSN 6650-01-029-2995
NSN 5895-01-133-3585
NSN 6150-01-385-6955
NSN 6145-01-588-4838