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 6110-01-106-2708
NSN 5950-00-871-1036
NSN 6145-01-551-1419
NSN 6130-01-286-6557
NSN 5996-01-207-0804
NSN 5915-01-046-8139
NSN 6135-01-611-0125
NSN 5920-01-068-0178
NSN 5998-00-233-6401
NSN 5990-01-390-2177
NSN 5925-01-310-9632
NSN 2925-00-221-4977