The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5975-01-268-3834
NSN 5975-01-061-9320
NSN 6645-01-417-3524
NSN 5965-01-406-6320
NSN 5895-00-553-8345
NSN 5930-00-293-2492
NSN 5930-01-492-5818
NSN 6110-01-377-3352
NSN 2925-01-063-7876
NSN 6320-00-343-1798
NSN 5920-01-499-1255
NSN 6220-00-148-8698