The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5925-00-248-1453
NSN 5910-01-317-1800
NSN 6620-01-151-3986
NSN 5835-01-205-6614
NSN 6220-00-113-3622
NSN 6130-00-528-7838
NSN 5920-00-189-0858
NSN 5998-01-136-4410
NSN 5996-00-270-0340
NSN 5945-00-911-6197
NSN 6135-00-321-6707
NSN 5950-01-559-3299