The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5930-01-407-9221
NSN 5990-01-268-2236
NSN 5985-01-448-3247
NSN 5835-01-310-8979
NSN 5985-01-560-5630
NSN 6650-00-182-7791
NSN 4140-00-350-7489
NSN 6620-01-163-3329
NSN 5930-01-566-7941
NSN 5920-01-161-8120
NSN 5960-01-170-4057
NSN 2925-00-546-3129