BS EN 3831 pdf free download
BS EN 3831 pdf free download. Inserts, thickwall, self-locking, in heat resisting steel FE-PM3801 (17-4PH), MoS2 coated.
1 Scope This standard specifies the characteristics of self-locking, thickwall inserts, in FE-PM3801 , MoS 2 coated, for aerospace applications. Maximum test temperature: 350 °C 2 Normative references ISO 5855-2 Aerospace – MJ threads – Part 2 : Limit dimensions for bolts and nuts EN 2424 Aerospace series – Marking of aerospace products EN 2491 Aerospace series – Molybdenum disulphide dry lubricants – Coating methods EN 3899 Aerospace series – Inserts, thickwall, self-locking, MJ threads, in heat resisting steel FE-PM3801 (1 7-4PH) – Technical spécification 1 ) EN 3906 Aerospace series – Martensitic corrosion resisting steel FE-PM3801 – Air melted – Solution treated – Bar – D ≤ 50 mm – For the manufacture of fasteners – 1 1 00 MPa ≤ R m ≤ 1 300 MPa 1 )EN 401 4 Aerospace series – Inserts, thickwall, self-locking – Design standard 1 ) EN 401 5 Aerospace series – Inserts, thickwall, self-locking – Installation and removal procedure 1 ) TR 31 98 Aerospace series – Manufacturers’ identification monograms and marks for EN aerospace products 2) 3 Required characteristics 3.1 Configuration – Dimensions- Tolerances – Masses See figure 1 and tables 1 and 2. Dimensions and tolerances are in millimetres. They apply before MoS 2 coating. 3.2 Material EN 3906 3.3 Surface treatment EN 2491 NOTE If necessary, the code I9005 (Cage code allocated to AECMA) shall be placed between the description block and the identity block. 6 Marking EN 2424, style G Manufacturers’ identification marks in accordance with the list for special identification marks in TR 31 98 7 Technical specification EN 3899BS EN 3831 pdf download.
