The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5996-01-472-2112
NSN 6650-01-147-3125
NSN 6105-00-289-9993
NSN 6220-00-959-5698
NSN 2925-00-534-4565
NSN 6685-01-660-3000
NSN 6150-01-212-9010
NSN 5855-00-941-6412
NSN 5925-00-253-0096
NSN 5950-01-364-8368
NSN 6130-01-392-8162
NSN 6320-00-831-2227