Patent ID: 7761991
Filing Date: 2010-07-27
Classification: F16B,Y10T

Abstract:
1. A method for assembling a gas turbine engine assembly having a rotational axis, the gas turbine engine assembly including a flange that has a mating surface that extends substantially perpendicular to the rotational axis and a fastener opening that extends substantially parallel to the rotational axis, said method comprising: inserting a threaded fastener through the fastener opening; providing a shank nut including a mating end, an opposite non-mating end, and a body extending between the mating end to the non-mating end, wherein the body comprises an internal surface, an external surface, and a centerline extending from the mating end to the non-mating end, the mating end including a substantially planar exterior surface that is aligned substantially perpendicular to the centerline and an annular groove that extends from the exterior surface at least partially towards the non-mating end said body further comprises a hook extending outward from said external surface, said hook is a distance from said mating end, wherein at least a portion of said body is chamfered adjacent said mating end and diametrically opposite said hook with respect to said centerline; and securing the fastener to the shank nut such that the exterior surface is positioned against the mating surface to define an open space between the annular groove and the mating surface.