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 5905-00-971-6901
NSN 6220-01-303-4577
NSN 4140-01-544-4142
NSN 5915-00-058-8777
NSN 4140-01-633-9966
NSN 5905-01-391-4983
NSN 5975-00-553-7151
NSN 2925-00-412-2046
NSN 5920-00-449-5249
NSN 5975-01-044-0523
NSN 5990-00-728-8248
NSN 2925-00-371-2285