The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5905-00-087-7157
NSN 4140-01-116-7092
NSN 6135-00-231-7257
NSN 5910-00-824-2835
NSN 5950-00-062-7706
NSN 6135-01-038-6225
NSN 6110-01-413-1514
NSN 6135-00-152-8729
NSN 6135-01-176-2206
NSN 6150-01-485-0397
NSN 6620-01-500-9102
NSN 6105-01-182-5767