PISTON ROD This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Polishing Part is complete but needs rework to attain finish shown in note 3. Current process is 1) grind off existing flash chrome to d.4980 2)chrome plate to d.501 3)grind/polish down to d.4996/.4990 with finish shown below. Supplier must be familiar with finish callout and be able to analyze and provide certification of finish. We can provide the can already ground and re-plated, but would prefer supplier took care of everything. Finish: Ra = 4 to 8 microinch Rtm = Rz[DIN] = 40 microinch MAX Rp = 24 microinch MAX tp (bearing ratio) = 50% to 70% at .25 Rtm, relative to a reference line c = 5% tp Part Part Number: 150K14YE-6-1-1 Material: Alloy Steel Material Grade: Technical Specifications Category:Polishing Dimensions0.0 x 0.0 inch Annual Usage:0.0 Get quotes online for manufacturing services at MFG.com from machine shops, fabricators, job shops and contract manufacturers. MFG.com connects buyers and suppliers when the buyer has a need and the supplier has the right expertise and capacity. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Polishing: Polishing and buffing processes are surface treatments performed to smooth a variety of materials. Polishing may be done for functional purposes on parts like shafts, cylinders or lenses. Polishing is also done for aesthetic purposes, for example, to achieve hi-gloss, satin or brushed finishes on materials. Polishing and buffing require the use of a buffing pad and a compound, usually containing a very fine, silica-based abrasive. Polishing is done manually, with power tools, or with fixed machines.