BS 3834:2010 pdf download – Aerospace series — Nuts, anchor, self- locking, floating, two lug, incremental counterbore, in corrosion resisting steel, MoS 2 lubricated — Classification: 900 MPa (at ambient temperature) 315 °C
1 Scope
This standard specifies the characteristics of self-locking, floating, two lug anchor nuts, with incremental counterbore, in corrosion resisting steel, MoS 2 lubricated.
Classification: 900 MPa 1)
/ 315 °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.
EN 2424, Aerospace series — Marking of aerospace products
EN 2491, Aerospace series — Molybdenum disulphide dry lubricants — Coating methods
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 TR 3791, Aerospace series — Materials for self-locking nuts, threaded inserts and screw thread inserts of temperature classes ≤ 425 °C 3)
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
3 Required characteristics
3.1 Configuration — Dimensions — Masses
See Figure 1 and Table 1.
Dimensions and tolerances are expressed in millimetres and apply before MoS 2 lubrication.
Details of form not stated are at the manufacturer’s option.
3.2 Tolerances of form and position
ISO 8788.
3.3 Materials
TR 3791.
3.4 Surface treatment
EN 2491, thickness not specified.