The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6650-01-264-3045
NSN 6150-01-626-8476
NSN 5999-00-369-0451
NSN 5835-01-558-9444
NSN 5975-01-655-0696
NSN 6145-00-420-2177
NSN 5965-00-222-7394
NSN 6610-01-633-8931
NSN 5910-00-116-1116
NSN 6105-01-126-1485
NSN 5999-01-466-8241
NSN 7035-00-252-7467