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 5965-01-493-9721
NSN 5996-00-168-7651
NSN 6320-00-831-2227
NSN 5935-00-301-3405
NSN 6320-01-476-7476
NSN 5975-01-351-5249
NSN 5895-01-240-2515
NSN 6620-01-524-7562
NSN 6650-00-228-8440
NSN 6145-00-943-5482
NSN 6610-00-725-1444
NSN 4140-00-814-2505