The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5990-01-126-5824
NSN 6620-00-073-8577
NSN 6240-01-509-1905
NSN 5920-01-122-1509
NSN 5905-00-816-8554
NSN 6685-00-661-2347
NSN 7035-01-176-4857
NSN 6130-01-291-6194
NSN 5999-00-938-8737
NSN 5975-01-475-5004
NSN 6320-01-487-0336
NSN 5905-01-446-8177