The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6650-01-286-1930
NSN 5935-01-278-5305
NSN 6110-01-630-2076
NSN 5960-01-223-6202
NSN 2925-01-043-9786
NSN 5999-00-950-6157
NSN 5965-01-221-0569
NSN 5996-01-179-2681
NSN 6645-01-613-7389
NSN 6650-01-338-3823
NSN 6145-01-204-6486
NSN 5950-01-403-2852