matl cres 303 per astm a582,ty 303,cond a,finish passivate per qq-p-35,ty 1v,counterbored flanged,outside top flange dia 0.880 in.,flange counterbore dept 0.125 in.,o/a lg 0.450 in.,hole dia 0.220-0.240 in.,c/b dia 0.500 in. general characteristics item description