The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6150-00-707-3950
NSN 5975-00-319-6018
NSN 5996-00-349-0252
NSN 5910-00-856-8111
NSN 6650-01-406-4959
NSN 7035-00-104-7613
NSN 5945-00-168-3933
NSN 6240-01-043-5308
NSN 6240-01-280-0566
NSN 5920-01-313-7600
NSN 6650-00-405-6323
NSN 5915-00-264-5657