A structural shape fabricated from a ferrous or nonferrous material and resembles the following cross-sectional forms: for the letter h, both flanges of the h section are equal or longer than the width measured along the axis of the web; for the letter i, a 16 2/3 percent slope on the inside face of the ferrous type flange, either one or both of the nonferrous type flanges are shorter than the length measured along the axis of the web; for the letters t and z, on nonferrous type, the web is usually at right angles to the flanges. Letter h section may have a maximum of 5 percent slope on the inside face of the flanges.
NSN 5950-00-201-7921
NSN 5925-00-383-5382
NSN 4140-01-193-8102
NSN 5930-01-104-4775
NSN 5935-00-537-3362
NSN 5855-01-262-1766
NSN 5999-00-257-6452
NSN 5835-01-116-2369
NSN 5975-01-401-5355
NSN 5990-00-246-2184
NSN 5905-01-434-6982
NSN 4140-01-145-4474