The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5855-01-545-0566
NSN 6240-01-633-6350
NSN 6240-01-253-0687
NSN 6650-01-460-7334
NSN 5915-00-805-6268
NSN 6145-00-086-3746
NSN 5975-01-574-5493
NSN 5920-01-435-9530
NSN 6135-01-633-8502
NSN 6130-01-591-7487
NSN 4140-00-170-5152
NSN 6145-01-462-5930