The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6110-00-346-3655
NSN 6685-01-324-0341
NSN 6620-01-050-2866
NSN 5935-00-238-8941
NSN 6645-01-133-8359
NSN 5950-01-574-8054
NSN 5920-01-286-7072
NSN 5855-01-046-7273
NSN 6105-00-463-9108
NSN 5930-01-608-5420
NSN 6320-01-072-2073
NSN 2925-01-270-1124