Abstract: An improved mounting assembly is arranged for use in a thrust augmentation combustor for a gas turbine engine, for mounting a spray ring or the like to a duct. The mounting assembly includes a clevis which is mounted to the duct and has a circular pin upon which is carried an elongated slider having an axial central circular bore. The slider is mounted for rotational movement on the pin and has at least two parallel exterior sidewalls. A bracket is mounted on the slider for connection to the spray ring and has an elongated bore through which the slider passes. The elongated bore is closely fitted to the slider exterior in a first dimension corresponding to the parallel sidewalls and is larger than the slider exterior in a second dimension. The elongated bore has a length which is less than the axial length of the slider so that the bracket can be translated axially along the slider and the slider can be translated in the rectangular bore in the second dimension.