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 6150-00-357-2904
NSN 5998-01-122-4671
NSN 5945-01-372-5576
NSN 6105-01-556-2317
NSN 5925-01-415-3640
NSN 2925-01-021-7563
NSN 5990-01-462-1617
NSN 5950-01-366-0830
NSN 6110-00-432-9424
NSN 6145-00-044-6673
NSN 6110-01-427-0161
NSN 6610-00-221-5718