The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 2925-01-027-1293
NSN 6110-01-358-5165
NSN 6645-01-631-1866
NSN 5935-01-633-8741
NSN 7035-01-556-9060
NSN 5915-01-314-3979
NSN 5910-00-216-4726
NSN 5905-01-382-9671
NSN 6685-01-462-7060
NSN 6240-01-645-4797
NSN 6320-01-573-6490
NSN 5915-01-181-6626