The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6240-01-378-3722
NSN 5895-01-440-4247
NSN 4140-01-163-8796
NSN 6610-00-608-9802
NSN 6650-01-567-0455
NSN 5990-00-232-3965
NSN 5985-00-623-0328
NSN 6150-01-613-7197
NSN 6685-00-769-5376
NSN 5950-01-014-5589
NSN 6685-01-501-9984
NSN 6620-01-551-7071