The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5930-01-546-0850
NSN 6650-01-599-5668
NSN 5985-01-445-5150
NSN 5895-01-576-8741
NSN 5915-01-474-8187
NSN 2925-01-358-8346
NSN 5895-01-462-4503
NSN 5905-01-351-0539
NSN 6650-00-809-1817
NSN 5855-01-352-7033
NSN 5895-00-195-7714
NSN 6150-01-459-3906