BS EN 4591-2005 pdf download.Nuts, barrel, self-locking, floating, self-aligning, in heat resisting nickel base alloy, MoS2 lubricated Classification: 1 550 MPa (at ambient temperature) / 315 °C.
This BS EN 4591 specifies the characteristics of self-locking, floating, self-aligning barrel nuts. in heat resisting nickel alloy, M0S2 lubricated.
Classification: 1 550 MPa 1)1315 °C 2)
2 Normative references
The following referenced documents are indispensable for the application 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.
ISO 5855-2, Aerospace — MJ threads — Part 2: Limit dimensions for bolts and nuts.
ISO 5858, Aerospace — Nuts, self-locking, with maximum operating temperature less than ci’ equal to 425 °C — Procurement speciflcat,on.
ISO 8788, Aerospace — Nuts, metnc — Tolerances of form and position,
ISO 12278, Aerospace — Nuts, banl, self-locking, floating, self-aligning, with MJ thread, Classifications:
900 MPa (at ambient temperature) / 235 °C, 1100 MPa (at ambient temperature) / 235 C. 1 250 MPa (at ambient temperature) / 235 C and 1 550 MPa (at ambient temperature) / 235 C — Dimensions.
EN 2424, Aerospace series — Marking of aerospace products.
EN 2491 Aerospace senes — Molybdenum disulphide dry lubricants — Coating methods.
EN 3666, Aerospace series — Heat resisting alloy Nl-PH2601 — Solution treated and cold worked — Bar for forged fasteners —0 ≤50 mm — 1 550 MPa ≤Rm ≤ 1 830 MPa.3)
EN 9100, Aerospace series — Quality management systems — Requirements (based on ISO 9001:2000) and Quality systems — Model for quality assurance in design, development, production, installation and servicing (based on ISO 9001:1994).
EN 9133, Aerospace senes — Quality management systems — Qualification Procedure for aerospace standard parts.
3 Required characteristics
3.1 Configuration — Dimensions — Masses See Figure 1 and Table 1.
Dimensions and tolerances are: in conformity with ISO 12278 (except for temperature class), expressed in millimetres and apply before M0S2 lubrication.
Details of form not stated are at the manufacturer’s option.
3.2 Tolerances of form and position
See ISO 8788
3.3 Material
See EN 3666
3.4 Surface treatment
See EN 2491, thickness not specified, mandatory on threads, optional on other surfaces
5 Marking
EN 2424. style N. see Figure 1.
6 Technical specification
See ISO 5858, except fo4’
— Approval of manufacturers: see EN 9100:
— Qualification of products: see EN 9133.BS EN 4591-2005 pdf download.