The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5935-01-347-1476
NSN 6685-01-605-1284
NSN 5965-00-408-5501
NSN 6130-01-152-9131
NSN 6320-01-450-1696
NSN 5925-01-380-7283
NSN 6645-01-657-2604
NSN 5835-01-528-7454
NSN 5965-01-178-2367
NSN 5920-01-365-2302
NSN 6620-01-365-1499
NSN 5915-00-432-4580