The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5910-01-200-3256
NSN 6105-01-502-3024
NSN 6145-00-226-9499
NSN 5990-01-051-8304
NSN 5998-01-233-6476
NSN 5895-01-047-7379
NSN 7035-00-902-8995
NSN 5996-01-095-1356
NSN 5855-00-058-1293
NSN 5895-01-645-3773
NSN 6620-01-624-3933
NSN 6240-01-419-3495