The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6145-00-615-2019
NSN 6240-01-168-4533
NSN 6685-01-293-8132
NSN 5985-01-014-1541
NSN 6130-00-111-4574
NSN 2925-00-698-4882
NSN 7035-01-659-7528
NSN 5935-01-036-9939
NSN 6145-01-475-3587
NSN 6645-01-023-3520
NSN 6685-01-429-2715
NSN 5950-00-463-3060