The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6645-01-265-0648
NSN 6150-01-425-1947
NSN 5895-01-406-9662
NSN 5935-00-481-7671
NSN 5950-01-660-6085
NSN 6645-01-278-6973
NSN 5920-01-321-1877
NSN 5996-00-503-1852
NSN 5935-00-770-8432
NSN 6650-01-493-6638
NSN 5945-01-490-2650
NSN 6320-01-052-2118