Nut assemblies

Claim 1

A FUEL INJECTOR ASSEMBLY COMPRISING A BODY MEMBER AND RETAINING MEMBER, ONE OF SAID MEMBERS HAVING AN INTERNALLY-THREADED SOCKET PORTION, AND THE OTHER OF SAID MEMBERS HAVING AN EXTERNALLY-THREADED PORTION OPERATIVELY RECEIVED IN SAID INTERNALLY-THREADED SOCKET PORTION, SAID MEMBERS BEING RELATIVELY ROTATABLE ABOUT THE AXIS OF THEIR RESPECTIVE THREADED PORTIONS, AN INJECTOR NOZZLE MEMBER HAVING A PART THEREOF DISPOSED IN SAID SOCKET AND CONNECTED TO SAID BODY MEMBER FOR RELATIVE ROTATION THEREWITH, SAID PART HAVING AN ABUTMENT FACE FOR RECEIVING AN AXIAL THRUST FROM THE RETAINING MEMBER TOWARD THE BODY MEMBER, THE RETAINING MEMBER HAVING AN ABUTMENT FACE IN SAID SOCKET FOR APPLYING SAID THRUST, A MEMBER RESISTANT TO THE SAID THRUST INTERPOSED BETWEEN SAID ABUTMENT FACES, SAID MEMBER COMPRISING A RIGID WASHER OF TEMPERED SPRING STEEL INTERPOSED BETWEEN SAID ABUTMENT FACES, SAID WASHER HAVING RELATIVELY-OPPOSED FLAT FACES AND A THIN SURFACE LAYER OF FLOWABLE METAL ON EACH OF SAID FLAT FACES, SAID ABUTMENT FACES AND SAID THRUST RESISTANCE MEMBER CONSTITUTING THE SOLE MEANS TRANSMITTING SUBSTANTIAL AXIAL THRUST FROM SAID RETAINING MEMBER TO THE