The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5975-00-908-9478
NSN 5990-01-106-3786
NSN 5935-00-927-8652
NSN 2925-01-629-9416
NSN 5905-01-644-5732
NSN 5998-00-597-7175
NSN 6240-00-857-7514
NSN 5990-00-170-4239
NSN 6240-01-355-4425
NSN 6320-00-681-1324
NSN 5925-01-111-1316
NSN 5996-00-857-9810