400.0mm wide
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 5915-01-407-0393
NSN 6220-01-108-8285
NSN 5996-00-247-0854
NSN 6620-00-953-8570
NSN 6130-00-712-0431
NSN 6620-00-709-7389
NSN 5985-01-195-1413
NSN 6130-01-342-0864
NSN 5999-01-192-6479
NSN 6645-01-332-8982
NSN 5910-01-148-6149
NSN 6645-01-145-7357