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A tie-rod nut includes a nut base that extends between a first nut end and a second nut end, and a nut flange that extends radially outwards from the nut base at the first nut end. The nut base includes a nut bore with a threaded bore region that extends axially from the second nut end towards the f

A tie-rod nut includes a nut base that extends between a first nut end and a second nut end, and a nut flange that extends radially outwards from the nut base at the first nut end. The nut base includes a nut bore with a threaded bore region that extends axially from the second nut end towards the first nut end. The nut flange includes a plurality of mounting apertures that are arranged circumferentially around the nut base. The nut flange may be connected to a substrate by a fastener that extends through a first one of the plurality of mounting apertures.

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1. A tie-rod nut, comprising: a nut base comprising a nut bore and a flow aperture, wherein the nut bore extends axially through the nut base between a first nut end and a second nut end, and comprises a threaded bore region, and wherein the flow aperture extends radially outwards from the nut bore

1. A tie-rod nut, comprising: a nut base comprising a nut bore and a flow aperture, wherein the nut bore extends axially through the nut base between a first nut end and a second nut end, and comprises a threaded bore region, and wherein the flow aperture extends radially outwards from the nut bore through the nut base; anda nut flange extending radially outwards from the nut base at the first nut end, and comprising a plurality of mounting apertures that are arranged circumferentially around the nut base and that extend axially through the nut flange;wherein the flow aperture is arranged axially between the threaded bore region and the nut flange. 2. The tie-rod nut of claim 1, wherein the flow aperture is one of a plurality of flow apertures that extend radially outward from the nut bore through the nut base, and wherein the flow apertures are arranged circumferentially around the nut bore. 3. The tie-rod nut of claim 1, wherein the mounting apertures are arranged substantially uniformly around the nut base. 4. The tie-rod nut of claim 1, wherein the nut bore further comprises a keyway region that comprises a plurality of elongated grooves that extend partially into the nut base, and that are arranged circumferentially around an axial centerline of the nut bore. 5. The tie-rod nut of claim 4, wherein the keyway region is arranged axially between the first nut end and the flow aperture. 6. The tie-rod nut of claim 4, wherein the elongated grooves form a wrench socket within the nut bore. 7. A gas turbine engine system, comprising: a first engine case;a second engine case comprising a nut aperture;a tie-rod nut comprising a nut base that extends through the nut aperture between a first nut end and a second nut end, and a nut flange that extends radially outwards from the nut base at the first nut end, wherein the nut base comprises a nut bore with a threaded bore region that extends axially from the second nut end towards the first nut end, wherein the nut flange comprises a plurality of mounting apertures that are arranged circumferentially around the nut base, and wherein the nut flange is connected to the second engine case by a fastener that extends through a first one of the plurality of mounting apertures; anda tie-rod extending from the first engine case to a threaded tie-rod mounting segment that is mated with the threaded bore region. 8. The gas turbine engine system of claim 7, wherein the mounting apertures are arranged substantially uniformly around the nut base. 9. The gas turbine engine system of claim 7, wherein the nut base further comprises a wrench socket that is recessed axially into the nut base. 10. The gas turbine engine system of claim 7, wherein the nut bore extends axially through the nut base between the first nut end and the second nut end. 11. The gas turbine engine system of claim 10, wherein the nut base further comprises a flow aperture that extends radially outwards from the nut bore through the nut base, and is arranged axially between the nut aperture and the threaded bore region. 12. The gas turbine engine system of claim 11, wherein the flow aperture is one of a plurality of flow apertures that extend radially outward from the nut bore through the nut base, and are arranged circumferentially around the nut bore. 13. The gas turbine engine system of claim 11, wherein the tie-rod comprises a tie-rod bore that extends axially through the tie-rod, and that is connected to the nut bore. 14. The gas turbine engine system of claim 13, further comprising a first flow distributor that comprises a tubular distributor base that extends from a first distributor end to a second distributor end that is connected to the tie-rod; anda distributor flange that extends radially outwards from the tubular distributor base and is connected to the nut base, and comprises a first flow distribution aperture that extends through the distributor flange and is connected to the flow aperture. 15. The gas turbine engine system of claim 14, further comprising a second flow distributor connected to the first distributor end, wherein the second flow distributor comprises a second flow distribution aperture that directs a first portion of a fluid flow into the tubular distributor base, and a third flow distribution aperture that directs a second portion of the fluid flow into the first flow distribution aperture. 16. The gas turbine engine system of claim 10, further comprising a fluid supply fitting with a fluid outlet that is connected to the nut bore, wherein the nut flange is arranged between the second engine case and the fluid supply fitting, and wherein the fluid supply fitting is connected to the second engine case by the fastener. 17. The gas turbine engine system of claim 16, wherein the fastener is one of a plurality of fasteners, each of which extends through a respective one of the plurality of the mounting apertures and connects the fluid supply fitting to the second engine case. 18. The gas turbine engine system of claim 16, further comprising an annular seal arranged between the nut flange and the fluid supply fitting. 19. The gas turbine engine system of claim 16, further comprising an annular flow constrictor arranged within the fluid outlet. 20. The gas turbine engine system of claim 10, wherein the nut bore further comprises a keyway bore region that comprises a plurality of elongated grooves that extend partially into the nut base, and that are arranged circumferentially around an axial centerline of the nut bore.