ISO 4147 3rd Edition, September 1, 1997
Aerospace - Nuts, Hexagonal, Slotted (Castellated), Nrml Ht, Nrml Across Flats, with MJ Threads, Cls: 600MPa (at Ambt T)/120 Dgs C, 600MPa (at Ambt T)/235 Dgs. C, 900MPa (at Ambt T)/425 Dgs. C, 1100 MPa (at Ambt T)/235 Dgs. C, 1100 MPa (at Ambt T)/315 Dgs. C, 1100MPa (at Ambt T)/650 Dgs. C, 1210MPa (at Ambt T)/730 Dgs. C, 1250MPa (at Ambt T)/235 Dgs. C and 1550MPa (at Ambt T)/600 Dgs C - Dims.
Additional Comments: ENGLISH
Published By:International Organization for Standardization (ISO)
This International Standard specifies the dimensions of hexagon slotted (castellated) nuts, normal height, normal across flats, with MJ threads, of classifications: 600 MPa1)/120 °C2), 600 MPa1)/235 °C2), 900 MPa1)/425 °C2), 1 100 MPa1)/235 °C2), 1 100 MPal)/315 °C2), 1 100 MPa1)/650 °C2), 1 210 MPa1)/730 °C2), 1 250 MPa1)/235 °C2) and 1 550 MPa1)/600 °C2).
These nuts are intended to be used with split pins in conformity with IS0 1234.
This International Standard is only applicable for the compilation of aerospace product standards.
1) Corresponds to the minimum tensile stress which the nut is able to withstand at ambient temperature without breaking or cracking when tested with a bolt of a higher strength class.
2) Maximum temperature that the nut is able to withstand, without permanent alteration to its original characteristics, after ambient temperature has been restored. The maximum temperature is conditioned by the material or by the surface treatment.