National Item Identification Number
00-278-0944
002780944
9520-00-278-0944
9520002780944
National Stock Number
Item Name
BEAM,STRUCTURAL
Federal Supply Class
9520
Description
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.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
MILS20166
Required Categories
MATERIAL
FABRICATION METHOD
SURFACE TREATMENT
HEAT TREATMENT
LENGTH
BASIC S
Required Description
STEEL, MIL-S-20166, GRADE M
ANY ACCEPTABLE
ZINC
AS FABRICATED
20.000 FEET MI