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 4140-01-075-3490
NSN 5920-01-634-0250
NSN 5990-01-364-8405
NSN 5925-00-227-0396
NSN 5996-01-492-1695
NSN 6220-00-427-8155
NSN 6110-01-519-5028
NSN 5990-00-164-5992
NSN 6645-00-551-8291
NSN 6135-01-598-9890
NSN 5935-00-781-4832
NSN 5945-01-629-5346