Does this part include the necessary gaskets for installation

this assembly includes the collector box for simplified integration and replaces older legacy part numbers including EXC1086

Does this kit include the bottom nut and springs

This 115V single-phase motor operates at 1050 RPM and is built with a 42-frame (5-inch diameter) rolled steel housing

Check your unit's data plate or electrical schematic for the 1

Reznor 112042 Coupling 321042-401 Does this part include theThe Reznor 112042 Flexible Coupling is a critical mechanical interface designed for 5 16" shafts, commonly utilized in direct drive blower assemblies and motor to pump linkages across Reznor's unit heater lineup. This flexible coupling 5 16" is engineered to mitigate shaft misalignment, which reduces vibration and prevents premature bearing failure in high torque HVACR applications. Built with a resilient center member and durable hubs, the 112042