"THIS NSN IS REQUIRED TO DIMENSIONALLY BENCH INSPECT THE 1ST STAGE TURBINE STATOR SUPPORT PRIOR TO OR AFTER REPAIR OF THE OUTER DIAMETER FLANGE SURFACE ""L"" TO ""Z"". GAGE MEASURES FINISH DIM. 1.912 +.002 INCH DISTANCE FROM BOSS SURFACE ""B"" TO REPAIR FLANGE FACE SURFACE ""L""."