The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5960-00-531-6186
NSN 5998-01-469-0901
NSN 6620-01-596-3642
NSN 5925-00-205-2767
NSN 4140-00-146-1633
NSN 6320-01-270-1419
NSN 5945-00-429-7144
NSN 5925-00-722-0471
NSN 6130-01-505-2409
NSN 5945-01-604-6595
NSN 4140-01-590-7161
NSN 4140-01-239-4969