Precision rings, incorporated (PRI) is the leading designer and manufacturer of high temperature seals, piston rings and seal rings. Since 1949, our date of inception, the world has experienced monumental change. PRI’s continuous commitment to progressive engineering, management, and manufacturing techniques are unequalled in today’s piston and seal ring fabrication industry. Where ever you are in the world, PRI has the global resources to serve your specific requirements.

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). 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. Give us a call today to learn more 317-247-4786.

PRI maintains the highest quality systems. We are ISO 9001:2015 and AS9100C and Nadcap approved. All of these quality certifications are third party accredited. Please see our certificates of approval in the Quality Assurance section of this web site. PRI also maintains accreditation from the United States Department of the Navy.

Our ERP system tracks customer orders of piston rings and seal rings through the manufacturing process. This ensures that PRI will ship a quality product—ON TIME—to a diverse customer base. Precisions’ reputation in the market place is unparalleled regarding personal customer service. PRI has developed a unique historical database for raw material. This database allows us to strategically project customer needs and offer aggressive lead-times. Please visit the Materials section for a list of materials we commonly carry in our inventories. Please note that this is not an exhaustive list of our materials and capabilities.

In summary, PRI designs and manufactures piston rings and seal rings to meet today’s demanding operating conditions: low leakage, high temperatures, good material compatibility, and severe environments. High-temperature seals and piston rings are designed and manufactured to conform to each customer’s operational needs. We can also produce seal rings to meet our customers’ exact drawings and specifications.

Technical leadership, manufacturing expertise, imagination, creativity, united with a relentless sense of urgency for our customers. These are the expectations that will be met when you work with Precision rings, incorporated.