The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5915-01-391-8810
NSN 5925-01-562-0259
NSN 6645-00-952-0662
NSN 5920-00-585-0104
NSN 7035-01-042-5308
NSN 5930-00-276-7600
NSN 6645-01-249-3258
NSN 5835-00-373-2671
NSN 6110-00-577-8156
NSN 5910-01-360-6092
NSN 6320-00-894-1644
NSN 5910-01-479-1481