The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5915-00-084-6102
NSN 5965-00-522-0922
NSN 5950-01-063-6473
NSN 6240-01-251-3796
NSN 5998-00-079-5068
NSN 6105-01-471-2628
NSN 6645-00-736-0476
NSN 6645-00-507-5544
NSN 5905-00-497-0641
NSN 5996-01-027-3770
NSN 6685-00-358-8331
NSN 5930-01-451-3074