Inside fluting
An item with an integral porous or perforated plate, or with slits on the inside of a double wall.
NSN 5835-00-830-6416
NSN 6105-00-851-0007
NSN 6240-01-325-0898
NSN 5999-01-626-0978
NSN 5930-01-181-5605
NSN 6610-00-512-4183
NSN 6220-01-415-3350
NSN 5855-01-020-7982
NSN 5990-00-733-9262
NSN 5915-00-552-8179
NSN 6105-00-765-1046
NSN 6130-01-433-8772