Downloaded from https://www.everyspec.com MIL-sTD-131zB C SINK90”f 3° I N CL T O 1 . 5465 / 1 . 5455 D I A 1.f1965/l.4955HOLE . = \ ,; JP NOTES : Material: A11oY steel. Heat treat: 41-46 HRC (De-Carb free condition). Finish: Black oxide Unless Otherwise specified, dimensions in inches. ,. Surface Texture; 125 microinches, in accordance with ANSI B46.1. FIGURE 14. Disc holding nut fatigue fixture, AMsler. 32