For throat sizes #57 and up or .880" and up. Overall length is 2.75".
Throat size is bored out from a standard #52 nozzle and the throat is re-radiused. Exit Diameter is 1.82"
Made from premium grade ISO molded graphite with excellent resistance to thermal shock and erosion.
Please specify nozzle number or throat size in 64th`s of an inch in the order comments. Keep in mind that with extremely large throat sizes, more material is removed from the part which make it weaker and more likely to crack under high pressure.
Shown with nozzle polished. (no longer available)