| Part Number | NSN0657 |
| Imperial Dimensions | 0.25 inch diameter x 0.0625 inch thick |
| Metric Dimensions | 6.35mm diameter x 1.5875mm thick |
| Material | Sintered Neodymium-Iron-Boron (NdFeB) |
| Shape | Disc |
| Plating | Ni-Cu-Ni (Nickel) |
| Magnetization Direction | Thickness |
| Grade | N40 |
| Pull Force (lbs[g]) | 1.35[612] |
| Surface Field(G) | 2528 |
| Maximum Operating Temperature | 80 Deg C (176 Deg F) |
| Dimensional Tolerance | +/-0.005" |
| Magnet Quantity | 80 |
| Volume (cm3) | 0.05 |
| Weight (g) | 0.38 |
| Brand | Magcraft |
| Packaging | Magpak Tube |
| UPC | 875661000573 |
| Remanent Flux Density Br (kG [T]) | 12.5-12.8 [1.25-1.28] |
| Coercivity HcB (kOe [kA/m]) | >=11.3 [>=923] |
| 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 |