The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6135-01-398-5922
NSN 5855-00-058-1293
NSN 5855-01-342-3824
NSN 5965-01-554-0580
NSN 6685-01-391-6790
NSN 4140-01-451-7829
NSN 6105-01-030-0117
NSN 5975-01-527-8384
NSN 6685-01-327-7384
NSN 6685-01-399-8584
NSN 6320-01-102-0799
NSN 6105-00-225-5387