Twelve ribs; one intermediate ring; prime focus quad feed support
NSN 5990-01-609-4793
NSN 6130-01-196-4545
NSN 6645-00-399-4551
NSN 5855-00-055-1694
NSN 5965-01-486-9586
NSN 6320-01-006-6138
NSN 5990-01-361-4192
NSN 2925-01-386-7392
NSN 5945-01-435-7411
NSN 5935-00-693-4426
NSN 5930-01-582-8185
NSN 6320-00-228-5678
Last Updated: 08/09/2025