BS/EN 2868-2019 pdf download.Aerospace series – Nuts, hexagonal, slotted/ castellated, normal height, normal across flats, in heat resisting steel, silver plated — Classification: 1 100 MPa (at ambient temperature)/650 °C.
This BS/EN 2868 specifies the characteristics of hexagonal slotted/castellated nuts, normal
height, normal across flats. In heat resisting steel, silver plated, for aerospace applications.
Classification: 1100 MPa1/650 OCZ
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 2367, Aerospace series — Split pins in steel EN 2573
EN 2398, Aerospace series — Heat resisting steel FE-PA2601 (X6N1CrTiM0V26-15) — Rm 900 MPa — Bars for machined bolts — D ≤25 mm
EN 2399, Aerospace series — Heat resisting steel FE-PA2601 (X4N1CrTiMoV26-15) — Rm 900 MPG — Bars for forged bolts — D ≤25 mm
EN 2424, Aerospace series — Marking of aerospace products
EN 2786, Aerospace series — Electrolytic silver plating offasteners
EN 3639, Aerospace series — Heat resisting alloy FE-PA2601, softened and cold worked — wire for forged fasteners D ≤15 mm, 900 MPa ≤Rm ≤1 100 MPa3
EN 9100. Quality Management Systems — Requirements for Aviation, Space and Defence Organizations
Iso 4147, Aerospace — Nuts, hexagonal, slotted (castellated), normal height. normal across flats, with MI threads, classifications: 600 MPa (at ambient tern perature)/120 °C, 600 MPa (at ambient temperature)/235 °C, 900 MPa (at ambient teniperature)/425 °C, 1100 MPa (at ambient temperature) /235 °C, 1100 MPa (at ambient temperature)/315 °C, 1100 MPa (at ambient ternperature)/650 °C, 1 210 MPa (at ambient temperature)/730 °C, 1 250 MPa (at ambient tern perature)/235 °C and 1 550 MPa (at ambient tern perature)/600 °C — Dimensions
ISO 5855.2, Aerospace — Mi threads — Part 2: Limit dimensions jor bolts and nuts
ISO 8788, Aerospace — Nuts, metric — Tolerances of form and position
ISO 9139, Aerospace — Nuts, plain and slotted (castellated) — Procurement specification
TR 3823-002, Aerospace series — Materials for plain, slotted and self-locking by plastic ring hexagonal nuts4
3 Terms and definitions
No terms and deilnitions 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://www.iso.org/obp
— I EC Electropedia: available at http://www.electropedia.org/
4 Required characteristics
4.1 Configuration — Dimensions — Masses
See Figure 1 and Table 1.
Dimensions and tolerances are in conformity with ISO 4147. expressed in millimetres and apply after surface treatment.
Form and position tolerances shall be in conformity with ISO 8788.
4.2 Materials
EN 2398. EN 2399. EN 3639 or TR 3823-002.
4.3 Surface treatment
EN 2786, thickness:
— on external surfaces: 5 pm to 15 pm;
— on pitch diameter: 5 itm minimum for nuts MJ6 and larger. Nuts M5 and smaller shall show complete coverage over complete profile.BS/EN 2868-2019 pdf download.
BS/EN 2868-2019 pdf download
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