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 6320-00-004-9158
NSN 6610-01-657-1773
NSN 6610-00-244-2816
NSN 6320-00-213-0477
NSN 6645-00-011-9968
NSN 6240-01-003-8666
NSN 5998-00-104-6917
NSN 6645-01-290-9428
NSN 4140-01-437-8715
NSN 6130-01-416-7178
NSN 5910-00-511-5271
NSN 5920-00-073-5507