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 5996-00-225-7737
NSN 6650-01-134-8933
NSN 4140-01-604-9981
NSN 6130-01-420-9155
NSN 6320-00-925-0558
NSN 6685-00-410-8284
NSN 5998-00-985-4372
NSN 5950-00-312-4321
NSN 6240-01-446-7851
NSN 6110-01-580-0855
NSN 5975-01-146-4240
NSN 5990-01-195-3693