This standard specifies the characteristics of self-locking hexagonal nuts with ball seat in alloy steel, cadmium plated, MoS2 lubricated.Classification: 900 MPa ) / 235 °C ) They are intended to be used with washers to EN 2648 or suitable parts, see Annex A.
DS/EN 2647:2006 history
2006DS/EN 2647:2006 Aerospace series - Nuts, hexagonal, self-locking, ball seat, in alloy steel, cadmium plated, MoS2 lubricated - Classification: 900 MPa (at ambient temperature)/235 °C