The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 7035-00-679-9027
NSN 6240-00-095-3915
NSN 6105-01-244-6254
NSN 5915-01-021-1646
NSN 5990-00-490-5250
NSN 5930-01-576-9993
NSN 5999-01-170-4738
NSN 7035-01-328-7448
NSN 5930-00-774-6449
NSN 6320-01-347-2638
NSN 5960-00-241-2911
NSN 5996-01-584-8748