GENERAL CHARACTERISTICS ITEM DESCRIPTION | MATERIAL: COMMERCIAL STRUCTUAL STEEL; FINISH: ZINC PHOSPHATE TREAT PER TT-C-490,TYPE 1 ZINC CHROMATE PRIMER PER MIL-P-18585 PAINT,2 COATS LIGHT GREY ENAMEL PER MIL-E-15090,TYPE II OR III CLASS 2; THREADS AND RUBBER PARTS TO BE FREE OF FINISH; UNPAINTED HARDWARE TO BE STAINLESS STEEL; 20.000 IN. LG,15.000 IN. W,3.750 IN. H |