The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5925-01-071-5404
NSN 7035-00-476-7178
NSN 6110-01-574-7638
NSN 6135-00-715-4001
NSN 5950-01-415-1563
NSN 6145-01-202-7772
NSN 5920-01-193-0614
NSN 4140-01-555-7275
NSN 5930-00-993-2456
NSN 5855-01-083-9053
NSN 6130-01-212-9912
NSN 6145-01-073-6641