Rare Earth Magnet - Disc, 0.25 in. Diameter x 0.125 in. Thick, 40-Count

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Part Number NSN0579 Imperial Dimensions 0.25 inch diameter x 0.125 inch thick Metric Dimensions 6.35mm diameter x 3.175mm thick Material Sintered Neodymium-Iron-Boron (NdFeB) Shape Disc Plating Ni-Cu-Ni (Nickel) Magnetization Direction Thickness Grade N40 Pull Force (lbs[g]) 2.67[1211] Surface Field(G) 3908 Maximum Operating Temperature 80 Deg C (176 Deg F) Dimensional Tolerance +/-0.005" Magnet Quantity 40 Volume (cm3) 0.1 Weight (g) 0.75 Brand Magcraft Packaging Magpak Tube UPC 897970000792 Remanent Flux Density Br (kG [T]) 12.5-12.8 [1.25-1.28] Coercivity HcB (kOe [kA/m]) >=10.9 [>=867] Intrinsic Coercivity HcJ (kOe [kA/m]) >=12.0 [>=995] Maximum Energy Product Bhmax (MGOe [kJ/m3]) 38-41 [302-326] Density p(g/cm3) >=7.45 Compression Strength (Mpa) 600-1200 Bending Strength (Mpa) 150-380 Vickers Hardness (HV) 460-660 Recoil Permeability (urec) 1.05 Electrical Resistance (Ohm*mm2/m) 1.25-1.55 Curie Temperature Tc (°C) 310 Thermal Expansion Coefficient 100°C//(x10^-6/K) 6 Thermal Expansion Coefficient 100°C?(x10^-6/K) -1