0.140 in. spacing between each rib; 7 ribs width; 1583 millimeters
NSN 6320-01-239-0959
NSN 6685-01-237-7039
NSN 5960-01-654-4353
NSN 5985-01-012-5676
NSN 6105-01-568-0763
NSN 5998-01-565-4178
NSN 6685-01-220-6272
NSN 6105-00-318-5819
NSN 2925-00-526-4541
NSN 6105-01-334-7556
NSN 5855-00-631-4565
NSN 6130-01-146-6971