The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5965-00-725-4453
NSN 5855-01-437-6161
NSN 7035-01-361-4176
NSN 6685-00-974-8140
NSN 5930-01-116-3346
NSN 6145-00-338-5645
NSN 6320-00-521-9350
NSN 6240-01-306-6109
NSN 5915-00-295-3072
NSN 6620-01-462-0001
NSN 4140-01-215-4512
NSN 6110-01-176-0410