The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5925-01-441-9569
NSN 6220-01-106-3215
NSN 4140-01-248-1696
NSN 5925-01-608-5897
NSN 5855-01-103-8650
NSN 5835-01-390-4667
NSN 5920-01-303-5951
NSN 5930-01-129-1657
NSN 6135-01-226-4071
NSN 5920-00-486-8822
NSN 5905-01-155-5692
NSN 5996-01-371-5617