The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6135-01-542-0659
NSN 5930-01-290-3886
NSN 5999-01-420-7102
NSN 5895-00-728-3655
NSN 6620-00-917-5259
NSN 6650-01-565-8316
NSN 6240-01-139-3377
NSN 5935-01-631-3176
NSN 6650-00-451-8174
NSN 5920-01-250-2502
NSN 5895-01-249-9536
NSN 6240-01-213-1449