The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5990-01-313-5543
NSN 6685-01-521-5878
NSN 6130-01-425-2678
NSN 5990-01-156-7004
NSN 6130-01-090-1425
NSN 5855-01-388-6837
NSN 5960-01-487-4791
NSN 6105-01-285-5690
NSN 5910-01-147-9483
NSN 6240-01-139-3377
NSN 5835-00-153-4100
NSN 5998-00-150-1856