The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5975-01-418-0376
NSN 5835-01-495-5986
NSN 6105-01-535-0999
NSN 5998-00-876-6949
NSN 5925-01-600-6303
NSN 6650-01-472-2244
NSN 5990-01-512-5478
NSN 6650-01-244-5614
NSN 4140-01-029-4211
NSN 2925-00-580-4931
NSN 6620-01-462-0001
NSN 5960-01-024-7918