BS EN 04084:2009 pdf free download – Aerospace series- Nuts, anchor, self- locking, fixed, two lug, with counterbore, in alloy steel, cadmium plated, MoS2 lubricated Classification: 1 100 MPA (at ambient temperature)/ 235 °C.
BS EN 04084 specifies the characteristics of two lug fixed anchor nuts, with counterbore and a self- locking feature achieved by forming the upper portion out-of-round, in alloy steel, cadmium plated, MoS2 lubricated.
Classification: 1100 MPa 1) 235 0c 2)
2 Normative references
EN 2133, Aerospace series — Cadmium plating of steels with specified tensile strength  1450 MPa, copper, copper alloys and nickel alloys
EN 2424:2008, Aerospace series — Marking of aerospace products
EN 2491, Aerospace series — Molybdenum disuiphide dry lubricants — Coating methods
EN 2542, Aerospace series — Steel FE-PL 1502 (25CrMo4) — Annealed — Bar and wire — De  40 mm — For prevailing torque nuts
EN 2543, Aerospace series — Steel FE-PL 1502 (25CrMo4) — Annealed— Sheet and strip — 0,3 mm a 2 mm — For prevailing torque nuts
EN 9100, Quality Management Systems — Requirements for Aviation, Space and Defense Organizations
EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts
ISO 3223, Aerospace — Nuts, anchor, self-locking, fixed, two lug, with counterbore, with MJ threads, classifications: 1100 MPa (at ambient temperature)/235 °C, 1100 MPa (at ambient temperature)/315 °C and 1100 MPa (at ambient temperature)/425 °C — Dimensions
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 or equal to 425 °C
— Procurement specification
ISO 8788, Aerospace — Nuts, metric — Tolerances of form and position
TR 3791, Aerospace series — Materials for self-locking nuts, threaded inserts and screw thread inserts of temperature classes 425 °C.