Restrictor

 

restrictor, a part for pool heater

 

outer diameter: 0.750 +/- 0.010 inch,

inner through hole diameter 0.421 +/- 0.010 inch,

length 0.700 +/- 0.010 inch,

outer diameter of knurl: 0.690 +/- 0.010 inch

 

mechanical

straight knurls, angle tooth 900, circular pitch 0.049, number of teeth: 44

 

material: naval brass C48500

 

manufactured by CNC lathe turning & milling