Twelve ribs; one intermediate ring; prime focus quad feed support
NSN 6105-00-255-8336
NSN 5990-00-488-1091
NSN 5950-01-340-3361
NSN 2925-00-888-5111
NSN 5945-01-524-6168
NSN 5945-01-515-5574
NSN 6620-01-091-9697
NSN 5905-01-602-9405
NSN 6240-01-522-4096
NSN 4140-00-699-0904
NSN 5998-01-630-5833
NSN 5910-01-029-0871
Last Updated: 05/10/2025