The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 7035-01-350-4247
NSN 5990-01-190-8223
NSN 6105-01-296-3382
NSN 5999-00-898-4590
NSN 5950-01-014-5589
NSN 5985-00-890-4428
NSN 2925-01-444-2061
NSN 5985-01-537-3493
NSN 6685-01-398-5906
NSN 5950-00-234-2532
NSN 5990-01-032-5160
NSN 6240-00-467-7295