The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 2925-01-613-8015
NSN 7035-01-610-6763
NSN 6240-01-307-5094
NSN 5855-01-047-3231
NSN 6240-00-314-8042
NSN 5950-01-330-7693
NSN 6685-01-122-0382
NSN 6110-01-005-5140
NSN 5960-01-127-9061
NSN 4140-00-110-4524
NSN 7035-01-227-2546
NSN 5990-01-392-5682