The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6685-01-202-8900
NSN 5835-01-495-0595
NSN 6105-01-370-0549
NSN 6135-01-309-8414
NSN 6145-01-621-5010
NSN 5835-00-012-1846
NSN 5855-00-869-3635
NSN 5965-01-026-9865
NSN 6110-01-104-4777
NSN 5930-00-433-1163
NSN 5950-00-849-7427
NSN 6240-01-574-0261