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.
Classification: Unwrought aluminum, not alloyed
NSN 6145-01-414-2195
NSN 6610-00-273-9019
NSN 6135-01-462-1135
NSN 5950-01-139-5169
NSN 5999-01-519-9353
NSN 6220-01-450-4659
NSN 5905-01-237-1406
NSN 6135-01-200-5144
NSN 5960-01-023-8800
NSN 5945-01-597-9838
NSN 5920-01-031-7891
NSN 5999-01-090-0664