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 5990-01-057-4191
NSN 4140-01-350-4475
NSN 6620-01-181-9853
NSN 6145-01-253-3051
NSN 7035-00-392-5417
NSN 5835-00-660-4523
NSN 5930-01-468-5685
NSN 7035-01-462-8701
NSN 5990-00-944-0166
NSN 7035-01-278-1379
NSN 5960-01-465-6847
NSN 6685-01-600-9937