| GENERAL CHARACTERISTICS ITEM DESCRIPTION | ALUMINUM ALLOY QQ-A-591 COMP 380,DIM.,4.790 IN. MIN,4.830 IN. MAX LG3.010 IN. NOM LG RAISED CENTER SECTION,0.625 IN. NOM HIGH RAISED CENTERSECTION,TWO HOLES 0.063 IN. DIA DRILLED THRU,TAP DRILLED 0.650 IN. DEEP,TAPPED W/0.250-28 UNF CLASS 3B THREADS 0.500 IN. DEEP,1.638 AND 2.738 IN.FROM TOP W/1.100 IN. CENTER TO CENTER DISTANCE,TWO NO. 206-011-255-1 STUDSTORQUED INTO THREADED HOLES PER BPS 4018 TYPE X BELL HELICOPTER CO,FOURHOLES DRILLED THRU SIDE OF RAISED SURFACE 0.250 IN. FROM EDGE AT 1.200 IN.279.5 DEG,1.860 IN.,82.5 DEG,2.350 IN.,272 DEG 40 MIN,3.080 IN. AND ZERO DEGFROM TOP TO HOLD NO. MS124696 INSERTS |