Used on part of the front cowl armor kit nsn 2540-01-533-8820; nha nsn m15a3 armor kit 2540-01-523-1336; armored version of m915a3 2320-01-523-2486. 0.312" hole diameter cadmium surface treated
0.257" hole diameter 0.281" outside diameter 0.025" material thickness contains pre-bent keys on each end, bent in opposite directions passivate surface treated key