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 5990-00-724-4375
NSN 5935-01-411-4993
NSN 5985-01-089-1426
NSN 5975-00-025-0690
NSN 6110-01-648-1032
NSN 5835-01-501-0526
NSN 5915-01-400-6125
NSN 5950-01-359-8753
NSN 6610-01-327-3187
NSN 6620-01-462-0001
NSN 5945-01-281-6968
NSN 5985-01-389-1293