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 5990-01-642-5748
NSN 6150-01-245-8701
NSN 4140-00-191-1236
NSN 5990-01-143-2518
NSN 5950-01-213-6446
NSN 6130-01-634-0603
NSN 5975-00-529-3835
NSN 5935-00-251-3929
NSN 6645-01-521-3180
NSN 5935-00-961-8117
NSN 5935-01-596-4749
NSN 5975-01-206-4327