ISO 9216:2002 Preview
Aerospace -- Nuts, hexagonal, slotted (castellated), for pulleys, in alloy steel and cadmium plated or in corrosion-resistant steel and passivated -- Dimensions and masses
This standard was last reviewed and confirmed* in 2015.
*Therefore this version remains current
ISO 9216:2002 specifies the characteristics of nuts, hexagonal, slotted/castellated, of reduced height and reduced width across flats, in alloy steel and cadmium plated (classification 900 MPa/235 °C) or in corrosion-resistant steel and passivated (classification 900 MPa/450 °C).
ISO 9216:2002 is applicable to nuts used with ISO 9219 bolts, ISO 9217 and ISO 9218 washers, and ISO 1234 split pins in the assembly of ISO 7939 pulleys.
ISO 9216:2002 is also applicable to nuts in the assembly of airframe rolling bearings or spherical bearings.