The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6685-00-836-9145
NSN 6645-01-170-7368
NSN 5960-01-074-9388
NSN 5930-01-285-3619
NSN 5905-01-251-3863
NSN 5895-01-359-9188
NSN 5975-00-062-7976
NSN 5998-01-143-6937
NSN 5960-01-170-4057
NSN 6105-01-471-8085
NSN 5935-01-103-4904
NSN 6320-01-422-1212