The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6650-01-652-9980
NSN 5950-01-550-1668
NSN 6145-01-424-0963
NSN 6220-01-538-5493
NSN 5915-00-772-6669
NSN 5835-00-148-9719
NSN 6685-01-322-2799
NSN 5920-01-328-7911
NSN 5935-00-284-8306
NSN 5975-01-068-3549
NSN 6320-00-284-1524
NSN 6135-00-299-6918