The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5998-01-550-6300
NSN 6145-01-642-6054
NSN 5855-01-293-7444
NSN 5985-01-472-2037
NSN 6320-01-039-5891
NSN 6110-01-045-2029
NSN 6685-01-503-1703
NSN 5998-01-158-1853
NSN 5990-00-082-3107
NSN 5920-00-840-7313
NSN 5835-00-993-5406
NSN 2925-01-577-0004