DIN_433-1相关标准规范

UDC621.882.42March 1990Product grade A washersDINwith a hardness up to 250 HVdesigned for use with cheese head screws433Part 1Scheiben:Produktklasse A.bis Harte 250 HV.vorzugsweise fur ZylinderschraubenThis standard,togetherwith DIN 433 Part 2.March 1990 edition.supersedes DIN 433March 1972 edition.In keeping with current practice in standards published by the International Organization for Standardization (ISO).a commahas been used throughout as the decimal marker.Dimensions in mm1 Scope and field of applicationThis standard specifies requirements for product grade A washers with a smaller outside diameter and a hardness up to250 HV,designed for use with screws of property class 8.8 or less.Note.The washer hardness shall be selected as a function of the assumed bearing pressure in the bolted assembly.2 Dimensionsdd2Table 1.ClearanceOutsideThickness.hMasshole diameter.diameter.For(7.85kg/dmd2Nominalthreaddpersizesizemin.=max.-Nominal1000 units.nominalmaxnominalminsizemaxminin kg.Wsizesize1,111,11.242.52.250.30.350.250.0101,31.2131.4432,750.30.350.250.0141.51.41.51.6432.750.30.350.250.0121.71.61.71.843.53.2030.350.250.01721.822,1443.70.30.350.250.0222,222.22.344.54.20.30,350250.0292.72.52.72.8454.70.50.550.450.0553,23323.3865.70.50.550.450.0793,73.53.73.8826.640.50.550.450.1094.344.34.4887.640.50.550.450.1405.355.35.4898.6411.10.90.3266,46.46.621110.571.61.81.40.7908,488.48.621514.571.61.81.41.5210,51010.510.771817.571.61.81.421113121313.272019.4822.21.82.8515141515272423.482.52.72.35.4117161717272827.482.52.72.37.6319181919.333029.482.5272383121202121.333433,3833,32.713.2252525.333938,384.33.722.131303131395049.384,33.738.037363737.625856855.64.461.5Continued on pages 2 and 3