The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5920-01-627-5524
NSN 6320-00-405-2348
NSN 5835-01-644-8013
NSN 5950-00-895-3635
NSN 6240-01-341-3418
NSN 5835-01-654-4570
NSN 4140-00-227-8228
NSN 5920-01-339-1080
NSN 5990-01-303-0564
NSN 6150-01-462-5790
NSN 6610-00-835-0248
NSN 6130-01-114-2310