Precision Rings, Incorporated (PRI) is the leading designer and manufacturer of high temperature piston rings and seal rings since 1949. PRI’s continuous commitment to progressive engineering, management, and manufacturing techniques are unequalled in today’s piston and seal ring fabrication industry. 

PRI is a seal and piston ring manufacturer for a wide spectrum of industries. Some of the more traditional markets served are aircraft, aerospace, industrial valve, and power generation (gas, steam, commercial and naval nuclear). Additionally, PRI is also involved with some of the latest cutting edge technologies such as advanced fuel delivery systems, deep underwater drilling systems, and advanced engine propulsion design.

PRI maintains the highest quality systems. We are ISO 9001:2000/AS9100: B and Nadcap approved. All of these quality certifications are third party accredited. PRI also maintains an accreditation from the United States Department of the Navy.

Precision Rings Incorporated

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