The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5930-01-438-7582
NSN 5935-01-009-5870
NSN 5998-00-086-0117
NSN 5999-00-552-8110
NSN 7035-01-408-6802
NSN 6135-01-483-4487
NSN 4140-00-925-4149
NSN 6650-00-229-3790
NSN 5965-01-654-9315
NSN 5990-01-266-9144
NSN 5915-01-456-9884
NSN 6220-01-583-1877