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 6610-01-448-2590
NSN 4140-01-346-9293
NSN 5915-00-149-1308
NSN 6620-01-488-9547
NSN 6320-01-605-7059
NSN 4140-00-823-9194
NSN 5935-01-510-0863
NSN 6320-00-186-6452
NSN 5990-00-855-9451
NSN 6130-00-324-8430
NSN 5975-01-502-8400
NSN 6320-01-372-8671