The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6650-01-068-3997
NSN 6110-01-202-8009
NSN 6685-01-425-2603
NSN 5998-01-353-0728
NSN 6240-01-229-1749
NSN 5985-01-470-5443
NSN 5855-01-147-6024
NSN 5910-01-222-3588
NSN 5965-01-468-0984
NSN 6130-01-360-5637
NSN 6650-01-273-3152
NSN 6110-01-222-0767