BS EN 19:2016 pdf download.Aerospace series – Washers, chamfered, with counterbore, in alloy steel, cadmium plated.
BS EN 19 specifies the characteristics of chamfered washers, with counterbore, in alloy steel, cadmium plated, for maximum operating temperature 235 °C.
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 2133. Aerospace series — Cadmium plating of steels with specified tensile strength < 1 450 MPa, copper, copper alloys and nickel alloys
EN 2205. Aerospace series — Steel FE-PL 1502 (25CrMo4) — 900 MPa < Rm <1100 MPa — Bars — De S 40mm
EN 2424. Aerospace series — Marking of aerospace products
EN 2438. Aerospace series — Steel FE-PL2102 (35NiCr6) — 900 MPa < R,,, < 1100 MPa — Bars — D < 40mm
EN 3513, Steel FE-PL7II — Hardened and tempered — 900 MPa < Rm < 1 100 MPa — Bar and wire D < 45 mm1)
EN 9100. Quality Management Systems — Requirements for Aviation, Space and Defence Organizations
3 Terms and definitions
No terms and definitions are 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:/Jwww.iso.org/obp
— IEC Electropedia: available at http://www.electropetha.org]
4 Required characteristics
4.1 Configuration — Dimensions — Masses
See Figure 1 and Table 1. Dimensions and tolerances are expressed in millimetres. They apply after surface treatment.
4.2 Material
EN 2ZQ5 EN 2438 or EN 3513.
4.3 Surface treatment
EN 2133. 7 tm to 10 urn on all surfaces which can be contacted by a 20 mm diameter ball. On all other surfaces, a continuous deposit shall be present, but no value is specified.
6 Marking
EN 2424, style G, plus quantity (mass or number).
7 Quality assurance
Shall be according to EN 9100.BS EN 19 pdf free download.