Left hand side; 6 holes equally spaced on 20.25 in. Center
NSN 5835-01-436-6549
NSN 5975-00-901-6114
NSN 6150-01-254-3166
NSN 5905-01-413-2947
NSN 5930-01-382-4926
NSN 6610-00-288-5655
NSN 6220-01-604-9488
NSN 5998-01-272-2556
NSN 6320-00-701-0437
NSN 5960-01-399-4327
NSN 5950-01-054-8456
NSN 5950-01-578-6669