The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5925-00-444-7108
NSN 5895-00-150-7072
NSN 5965-01-023-9359
NSN 6685-01-449-0699
NSN 5925-01-510-4579
NSN 6240-01-569-4072
NSN 5930-00-323-1297
NSN 5998-01-077-7476
NSN 6130-01-205-8119
NSN 7035-00-553-6951
NSN 6135-01-362-4256
NSN 5910-00-973-6997