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 5855-01-618-8462
NSN 5999-01-647-7086
NSN 7035-01-543-6284
NSN 4140-01-604-8073
NSN 6150-01-474-7623
NSN 6650-00-087-6428
NSN 6320-00-405-2348
NSN 5990-01-438-8228
NSN 5965-01-573-1983
NSN 6650-01-068-3186
NSN 6240-00-522-3998
NSN 7035-01-349-7883