The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6650-01-461-8283
NSN 5925-00-232-3256
NSN 5975-01-204-5737
NSN 5999-00-050-5996
NSN 6105-01-537-9207
NSN 7035-01-302-5359
NSN 6150-01-249-6324
NSN 6650-01-442-0267
NSN 5910-00-854-6610
NSN 6620-01-182-4938
NSN 6110-01-417-3395
NSN 4140-01-411-7445