This standard specifies the characteristics of self-locking, floating, self-aligning barrel nuts, in heat resisting nickel alloy, MoS2 lubricated.
Classification: 1 550 MPa 1) / 315 °C 2)
BS EN 4591:2005 Referenced Document
EN 2424 Aerospace series - Marking of aerospace products*, 2008-05-01 Update
ISO 12278 Aerospace - Nuts, barrel, self-locking, floating, self-aligning, with MJ threads, classifications: 900 MPa (at ambient temperature)/235 °C, 1100 MPa (at ambient temperature)/235 °C, 1250 MPa (at ambient temperature)/235 °C and 1550 MPa (at ambient tempera
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*, 2024-04-18 Update
BS EN 4591:2005 history
2006BS EN 4591:2005 Aerospace series - Nuts, barrel, self-locking, floating, self-aligning,in heat resisting nickel base alloy, MoS2 lubricated - Classification: 15 50 MPa (at ambient temperature) / 315 °C