BS EN 2923 pdf free download

BS EN 2923 pdf free download.Aerospace series – Nuts, hexagon, plain, reduced height, reduced across flats, in heat resisting steel, silver plated – Classification: 600 MPa [at ambient temperature) / 425 °C .
1 Scope
This European standard specifies the characteristics of hexagon plain nuts, reduced height, reduced across flats, in heat resisting steel, silver plated, for aerospace applications.
ClassificatIon: 600 MPa’)/425 °C2).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2424. Aerospace series — Marking of aerospace products
EN 2786, Aerospace series — Electrolytic silver plating offasteners
EN 9100, Quality Management Systems — Requirements for Aviation, Space and Defence Organizations ISO 5855-2. Aerospace — MI threads — Part 2: Limit dimensions for bolts and nuts
ISO 8788, Aerospace — Nuts, metric — Tolerances ofform and position
ISO 9139. Aerospace — Nuts, plain or slotted frastellated) — Procurement specification
TR 3823-002, Aerospace series — Materials for plain, slotted and self-locking by plastic ring hexagonal nuts3)
3 Terms and definitions
No terms and definitions arc listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedla: available at http:/Jwww.electropedia.orgJ
4 Required characteristics
4.1 Configuration — Dimensions — Masses
See Figure 1 and Table 1.
Dimensions and tolerances are expressed in millimetres and apply after surface treatment.
Details of form not stated are at the manufacturer’s option.
4.2 Tolerances of form and position
ISO 8788.
4.3 Materials TR 3823-002. 4.4 Surface treatment EN 2786, thickness: 一on external surfaces:5 μm to 15 μm; 一on pitch diameter : 5 μm minimum.
6 Marking EN 2424, style C, plus M]. 7 Technical specification Shall be according to ISO 9139, except for approval of manufacturers: see EN 9100.BS EN 2923  pdf download.