The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6105-01-501-5654
NSN 5895-01-357-4630
NSN 2925-00-856-0115
NSN 5930-01-418-9569
NSN 5996-00-932-7538
NSN 5905-01-397-6438
NSN 5960-00-371-6963
NSN 5950-01-394-4673
NSN 2925-01-224-1885
NSN 5975-01-436-4159
NSN 5835-01-469-8968
NSN 6620-01-142-8494