The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5925-01-225-8866
NSN 6145-01-400-5819
NSN 5915-01-409-2926
NSN 5905-00-753-9731
NSN 2925-01-047-9189
NSN 6685-00-005-1288
NSN 5985-01-227-2646
NSN 4140-01-645-3218
NSN 6145-01-562-8071
NSN 7035-01-411-6062
NSN 5975-00-089-8693
NSN 5998-01-399-3496