The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5910-01-086-9307
NSN 5985-01-389-1162
NSN 6685-01-571-7926
NSN 6220-01-332-0524
NSN 6320-00-405-2348
NSN 5965-00-174-5792
NSN 6150-01-050-9128
NSN 6110-00-725-9740
NSN 5990-01-252-8175
NSN 5905-01-597-3934
NSN 7035-01-029-7221
NSN 5999-01-093-6051