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 6240-01-325-3544
NSN 5895-01-129-9563
NSN 5998-01-069-6947
NSN 6110-01-377-2277
NSN 5855-01-462-4258
NSN 6110-01-294-1041
NSN 6240-00-102-4003
NSN 6240-01-399-8573
NSN 5998-01-534-4597
NSN 5996-01-608-7830
NSN 5930-00-247-8609
NSN 5915-00-420-1557