The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5915-01-543-6286
NSN 5930-01-359-6441
NSN 4140-01-511-4643
NSN 5960-01-589-6846
NSN 6130-01-515-2833
NSN 5920-00-669-8984
NSN 5996-01-512-2030
NSN 5998-00-867-0568
NSN 5835-01-118-4690
NSN 5990-00-419-0236
NSN 6145-01-334-4248
NSN 5925-01-010-9536