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 4140-01-535-5269
NSN 5905-01-138-7224
NSN 4140-01-171-6152
NSN 5975-01-629-9491
NSN 5950-01-061-1556
NSN 5950-01-441-2143
NSN 6220-01-442-8707
NSN 5975-00-069-9324
NSN 6320-01-585-8468
NSN 6240-01-524-5952
NSN 5935-00-834-4912
NSN 5930-00-511-8382