The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6130-01-242-9778
NSN 5915-00-126-9683
NSN 5905-00-892-1654
NSN 2925-00-808-5077
NSN 5985-01-168-9636
NSN 6110-01-099-6893
NSN 5950-01-399-4055
NSN 5950-01-020-7717
NSN 5985-01-393-4453
NSN 5835-01-049-5290
NSN 6150-01-604-9198
NSN 5905-01-352-1918