The primary inclosure containing a drying agent such as silica gel or activated alumina.
NSN 5975-00-331-8200
NSN 6150-01-363-8650
NSN 5910-01-287-0555
NSN 5925-01-433-2946
NSN 5935-01-529-1913
NSN 5925-00-222-6199
NSN 6130-01-013-9343
NSN 6645-00-145-6411
NSN 6620-01-391-7331
NSN 5998-00-205-6704
NSN 6645-01-211-6502
NSN 6320-01-631-7828