Downloaded from https://www.everyspec.com NCL TOP DISC HOLDER T CENTER 12uN - 3A L - S - 8879 :3; , NCL lb STAMP SERIAL NUMBER LISTED ON PURCHASE ORDER (DESIGNATED SURFACE ONLY) GENERAL NOTES: BOTTOM OISC HOLOER Naterial: Alloy steel ~‘Heat treat: 46-51 HRC Finish: Black oxide (De-Carb free condition) Concentricity: All diameters concentric within .001 FIM. Dimensions ih inches. surface texture: Unless otherwise specified, 125 tiicroincl!es, in accordance with ANSI B46.1. FIGURE 13. Holding fixture, fatigue Amsler. 31