The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5965-01-361-7540
NSN 5950-01-167-9093
NSN 6610-01-033-6382
NSN 6135-00-715-4001
NSN 5925-00-383-9707
NSN 5935-00-456-0697
NSN 5855-01-306-0415
NSN 5965-01-499-8703
NSN 6645-01-258-6928
NSN 2925-00-343-3235
NSN 6610-00-276-5030
NSN 5835-00-391-8655