"STEEL BAR,1/4 IN. THK,3 IN. W,22 IN. LG,BENT 4 IN. AT TOP AT 90 DEGANGLE,1 SPACER BAR 1/4 IN. THK,1/2 IN. W,8 IN. LG,WELDED AT BEND,2 EA1/4 IN. THK,3 IN. W,4 IN. LG,BENT ON 1-1/4 IN. RADIUS AND WELDED TO 22IN. BAR FOR SUPPORT OF 2 IN. STEEL PIPE,USED TO RETAIN AIR LINES IN SPACEBETWEEN PONTOON OF PONTOON DRYDOCKS,NAVFAC DWG 816467,MK NO. PH2"