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 5930-00-823-8324
NSN 5935-01-219-6511
NSN 4140-01-078-8601
NSN 6105-01-151-9354
NSN 4140-01-534-3756
NSN 6645-01-483-5519
NSN 6620-01-147-0441
NSN 5910-00-108-8462
NSN 6620-01-647-1393
NSN 5905-01-408-3747
NSN 5999-00-647-2240
NSN 6220-00-722-3870