For technicians performing a valve plate replacement or top-end overhaul

As a veteran-grade jackshaft clamp

those are the same OEM part numbers

the Reznor 113275 is a standard fastener used across multiple generations of unit heaters

042 orifice size (industry-standard #42 drill size)

Robertshaw 4590-004 Griddle Type For technicians performing a valveThe Robertshaw 4590 004 is a professional grade commercial griddle thermostat dial designed for high accuracy temperature calibration on heavy duty cooking equipment. This Robertshaw 4590 series black knob features a temperature range of 150F to 400F (66C to 204C), offering precise control for flat top grills and griddles that utilize Robertshaw BJWA thermostats. Engineered for commercial kitchen equipment repair, this dial utilizes a 4 way universal