The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5975-00-018-7143
NSN 2925-01-144-7106
NSN 6135-00-057-2005
NSN 5945-01-528-6909
NSN 5920-00-832-6032
NSN 5990-01-514-8708
NSN 6320-01-532-7491
NSN 6220-01-231-4552
NSN 6105-00-715-0842
NSN 6650-01-523-2302
NSN 5975-01-359-8503
NSN 6650-00-249-5553