The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5915-01-526-9787
NSN 5999-00-290-5898
NSN 5855-01-158-2709
NSN 5945-01-610-9679
NSN 5990-01-380-7815
NSN 5905-01-435-4531
NSN 6320-01-123-6814
NSN 6610-00-202-5481
NSN 6220-00-531-6430
NSN 6220-01-496-9952
NSN 6685-01-585-1123
NSN 6220-00-934-1509