4 holes equally spaced, countersunk 82 degrees by 0.281 in. Dia
Classification: Military equipments not identified by kind
NSN 5985-01-305-7682
NSN 5855-01-057-7818
NSN 6130-00-451-9824
NSN 6135-01-552-1568
NSN 5920-00-499-8285
NSN 5835-01-484-4698
NSN 5998-01-441-3314
NSN 4140-00-762-7415
NSN 5835-01-430-4765
NSN 6130-01-173-0646
NSN 6220-00-839-2589
NSN 5985-00-022-2896