The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6645-00-117-9839
NSN 5950-01-010-3864
NSN 6240-00-269-3346
NSN 5855-00-316-5050
NSN 6645-00-359-5463
NSN 6105-00-920-3417
NSN 6135-00-134-6648
NSN 5998-01-114-2097
NSN 6240-01-068-3491
NSN 6150-01-583-5438
NSN 5990-01-136-4068
NSN 5950-01-599-6610