The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6645-00-200-2324
NSN 5930-00-517-9440
NSN 5925-01-553-8498
NSN 6135-00-221-4720
NSN 5965-01-617-0890
NSN 5950-00-786-1865
NSN 6320-01-352-5653
NSN 5930-01-585-8933
NSN 5996-00-185-9376
NSN 5999-00-208-8163
NSN 5996-00-508-0383
NSN 5835-01-447-2544