The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5905-01-095-4603
NSN 6645-01-144-8627
NSN 5915-01-627-6535
NSN 6105-01-130-9355
NSN 5910-00-663-5865
NSN 6110-00-246-3941
NSN 5905-01-552-1308
NSN 5835-00-020-0443
NSN 5960-01-530-0581
NSN 5930-00-930-5547
NSN 5960-01-474-4843
NSN 5975-01-157-5933