The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5935-00-067-7493
NSN 5895-00-246-4415
NSN 5915-00-230-8803
NSN 4140-00-413-0877
NSN 5835-01-222-7714
NSN 5855-01-423-7473
NSN 5910-00-336-4525
NSN 5920-01-023-6818
NSN 6650-00-143-1889
NSN 6645-01-392-4788
NSN 5945-01-322-7112
NSN 5930-01-129-9505