The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5925-01-089-6970
NSN 5920-00-762-3348
NSN 6105-01-528-1886
NSN 6645-01-023-2180
NSN 2925-01-106-3552
NSN 5960-01-236-1169
NSN 5950-01-156-8975
NSN 6145-01-460-0598
NSN 6130-00-031-0614
NSN 6610-00-264-0961
NSN 5925-01-197-6627
NSN 6685-01-654-2341