0.140 in. spacing between each rib; 7 ribs width; 1583 millimeters
NSN 4140-01-447-2419
NSN 5985-01-333-4348
NSN 6150-00-552-4629
NSN 5965-00-904-3451
NSN 5945-01-359-1974
NSN 5920-01-076-2679
NSN 5855-00-896-4047
NSN 5965-00-983-1815
NSN 5945-01-523-3470
NSN 5835-01-386-4027
NSN 6620-01-436-2715
NSN 5965-01-237-3342