The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5945-01-437-9007
NSN 6150-01-571-5832
NSN 6685-01-605-1375
NSN 5910-01-513-1608
NSN 5975-01-297-6836
NSN 5905-01-301-8382
NSN 5925-00-166-7932
NSN 5930-01-539-2744
NSN 5985-01-134-6262
NSN 5999-01-474-5011
NSN 5920-00-225-8893
NSN 5999-01-153-7361