The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6105-01-431-8998
NSN 6220-00-285-8104
NSN 6130-01-326-0336
NSN 5998-01-132-0479
NSN 5960-01-081-7745
NSN 6610-01-421-8703
NSN 5985-00-020-2226
NSN 5996-00-538-2239
NSN 6110-00-932-5257
NSN 5905-01-437-9554
NSN 6110-01-418-6589
NSN 5960-01-309-1280