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 5990-01-254-2936
NSN 5945-00-824-5849
NSN 6130-00-949-9347
NSN 5960-01-544-1273
NSN 5960-01-537-8161
NSN 5950-01-146-4329
NSN 5975-01-415-3331
NSN 5905-00-910-4188
NSN 6645-01-519-6324
NSN 5935-01-462-6056
NSN 5905-00-502-3493
NSN 6220-01-258-6217