"STEEL ANGLE,6 IN. BY 6 IN. BY 1/2 IN. THK,8 FT 5-3/8 IN. LG,W/ONEBENT PLATE ANGLE 4-1/2 IN. BY 4-1/2 IN. BY 1/2 IN. THK,8-1/2 IN.LG,GAGEDTO POSITION AND SECURED BY WELDING,FITTED W/A GUSSET PLATE WELDED TO ONELEG OF THE 6 IN. ANGLE,HOLES ARE PROVIDED FOR SECURING PONTOONS INTOSTRINGS AND STRINGS INTO STRUCTURES,BOTH LEGS DRILLED FOR BOLT AND NUTCONNECTION,W/REINFORCING BENT PLATE ANGLE,USED FOR LEFT HAND APPLICATIONTO SECURE TOP OF P4 TO P3 PONTOON IN P-SERIES STRUCTURES,NAVFAC DWG 816444,MARK NO. E86L"