The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 6150-00-159-0813
NSN 5915-00-885-0335
NSN 5920-01-603-9341
NSN 2925-01-502-5896
NSN 6130-00-007-5992
NSN 6135-01-187-4382
NSN 5996-00-577-0483
NSN 5999-01-441-9244
NSN 6645-01-408-0011
NSN 5965-00-362-2158
NSN 5985-01-141-6801
NSN 6130-01-467-6288