3 holes countersunk 110 degrees to 0.500 in. Dia; 1/2-20unf-2b thd
NSN 5910-00-299-1974
NSN 4140-00-450-1974
NSN 5975-01-442-6471
NSN 5905-01-093-9436
NSN 5950-00-317-8057
NSN 6240-00-452-5241
NSN 5905-01-173-0106
NSN 6320-01-492-1976
NSN 5985-00-288-6001
NSN 2925-01-259-0785
NSN 6110-00-429-4777
NSN 6650-00-824-5510