Twelve ribs; one intermediate ring; prime focus quad feed support
NSN 5999-01-647-2768
NSN 5990-00-538-3458
NSN 5930-00-215-4851
NSN 5975-01-278-9055
NSN 6105-01-654-9707
NSN 5985-00-767-5093
NSN 5905-01-050-3007
NSN 5935-01-501-6273
NSN 6610-01-112-0447
NSN 5925-01-437-6822
NSN 5960-00-089-1632
NSN 6145-01-098-7100
Last Updated: 05/12/2025