The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6150-01-215-1149
NSN 5925-01-467-9910
NSN 5985-00-136-4348
NSN 5905-00-900-0437
NSN 6150-00-819-4472
NSN 7035-01-173-5503
NSN 6320-01-116-9866
NSN 6240-01-457-7490
NSN 5996-00-246-2528
NSN 7035-01-256-1440
NSN 5915-00-553-8755
NSN 6105-01-215-3350