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 5950-00-133-4959
NSN 6645-01-295-9995
NSN 6110-01-231-8683
NSN 5975-01-023-8773
NSN 5990-01-381-9526
NSN 6150-01-315-0519
NSN 2925-01-459-8093
NSN 6320-01-631-7828
NSN 6110-01-367-6526
NSN 6145-00-024-6683
NSN 5925-00-448-0543
NSN 6320-01-558-8844