The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5835-01-118-4690
NSN 6685-00-010-3053
NSN 6320-01-476-7702
NSN 5950-00-888-1217
NSN 6240-00-269-9477
NSN 7035-00-413-0992
NSN 7035-01-038-9970
NSN 5925-00-782-4742
NSN 4140-00-635-9195
NSN 5920-00-990-1856
NSN 5895-01-625-8596
NSN 5855-01-504-6080