The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5990-00-492-5063
NSN 5965-00-175-8972
NSN 5910-01-055-6920
NSN 5935-01-212-3119
NSN 5910-01-576-8402
NSN 6645-00-731-8171
NSN 5998-01-481-4502
NSN 5895-01-588-9796
NSN 4140-01-400-3610
NSN 6645-01-148-1683
NSN 5998-00-793-2009
NSN 6130-01-287-9840