Used on mhu-170/e. 2c thread class left-hand 10 thread quantity per inch nut, plain, rectangular-two holes .279-.291 dia drilled thru, cham one corner 45 degrees x .12
2b thread class right-hand 56 thread quantity per inch 2 tapped holes on center line 0.125 in. from center line of hole to end of plate 0.250 in. center to center distance between holes holes tapped 2-56 unc 2bthread passivate surface treated