Osnova (Base) Part Blueprint - Steel 40X GOST 4543-71 Machining Drawing (Niva-FAQ)

This is a Russian-language engineering blueprint (GOST-format A4 drawing) for a machined part titled "Основа" (Base/Foundation), watermarked WWW.NIVA-FAQ.MSK.RU. The drawing shows three views of a flat bracket-like part with full dimensioning. Overall length is 143 mm, width 24 mm (18 mm at one section), with a raised/angled end. Key features include a ⌀17 mm hole, a ⌀19 mm counterbore machined on one side to a depth of 1.3 mm, and a ⌀12 mm hole with a tolerance of +0.05/−0.10 mm. Other dimensions include 44, 99, 89, 15.5, 23.5, 4, 20, 10, 12.5, 63, and 67.5 mm. The material is specified as Steel 40X (40Kh) per GOST 4543-71, drawn at 1:1 scale, single sheet (Лист 1, Листов 1). The title block lists Иванов Ю. (Ivanov Yu.) as the designer and Дедюхин А. (Dedyukhin A.) as the copyist. A reader can use this drawing to fabricate the part from 40Kh alloy steel, with all critical hole diameters, tolerances, and hole-to-hole spacing provided. No vehicle year, model, or application is stated on the drawing itself beyond the Niva-FAQ website watermark.