GENERAL CHARACTERISTICS ITEM DESCRIPTION | STEEL,CARBON GRADE 1018 TO 1022 SPEC ASTM A108,CASE HARDEN 0.003 TO 0.006 DEEP ROCKWELL 15N 89-91,2.343 IN. DIA CIRCLE,1.250 IN. DIA CIRCLE,0.6245 IN. DIA CIRCLE,COVER 0.312 IN. THICK,0.187 IN. THICK CHAMFER 0.031 TIMES 45.0 DEGREES,SUPPLEMENTARY QUALITY ASSURANCE PROVISIOWS ARE REQUIRED |