The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5895-01-085-9706
NSN 5985-00-964-3547
NSN 5975-01-373-0514
NSN 5905-01-660-2619
NSN 5920-00-832-0320
NSN 5975-00-909-5174
NSN 5990-01-439-4643
NSN 5965-01-038-8081
NSN 5935-01-602-8138
NSN 5895-00-082-1282
NSN 5975-01-607-2955
NSN 5835-01-126-9358