The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 7035-01-209-3929
NSN 5965-01-257-8926
NSN 5835-00-247-0161
NSN 6130-00-266-7496
NSN 5990-01-388-9264
NSN 6320-00-139-1090
NSN 5985-01-203-4883
NSN 5935-00-342-9426
NSN 6150-00-798-1131
NSN 6610-01-579-2984
NSN 5835-01-390-4667
NSN 5905-01-098-3101