FAQs

Precision rings, incorporated is a designer and custom manufacturer of custom piston rings and custom seal rings. Typically we do not offer “off-the-shelf” items. However, we do offer expediting services for custom rings when the need is great. Please contact us to inquire about our expediting services.

Precision rings, incorporated manufactures custom piston and custom seal rings for power generation, aerospace, aircraft and industries requiring industrial valves. Precision rings, incorporated does not manufacture custom piston rings for automobiles, or any reciprocating combustion engines.

Yes, Precision rings, incorporated manufactures custom made-to-order piston rings from the company production center located on 5611 Progress Road in Indianapolis, Indiana.

Yes, Precision rings, incorporated is a leading manufacturer of custom seal rings designed exclusively for aerospace and power generation applications. All metallic rings, whether they are piston rings or seal rings, allow some amount of leakage. Seal rings provide better sealing capabilities than piston rings. As such, a seal ring is typically used in applications where leakage is critical.

Yes, Precision rings, incorporated specializes in manufacturing custom piston rings made to order of .200" (5.08mm) to 100"+ (2,540 mm) in diameter. We are capable of replicating existing piston rings, producing rings from customer-provided drawings, or creating custom rings designed from scratch.

Precision rings, incorporated manufactures custom piston and custom seal rings for a variety of industries. These industries include power generation, aerospace, aircraft and industries requiring industrial valves. Precision rings, incorporated does not manufacture custom piston rings for automobiles, or any reciprocating combustion engines.

Yes, Precision rings, incorporated designs and provides hardware for a variety of OEM rocket launch platforms.

Yes, Precision rings, incorporated designs and manufactures for many OEM jet engine models.

Precision rings, incorporated specializes in manufacturing custom piston rings from high nickel, and high cobalt superalloys to ensure our made-to-order piston rings can handle a the high range of temperatures, pressures, and mating materials necessary for aerospace applications

No, Precision rings, incorporated does not manufacture piston rings for tractors or automotive applications. Pri specializes in manufacturing custom piston and custom seal rings for power generation, aerospace, military, microreactors and industries requiring industrial valves. 

No, Precision rings, incorporated does not manufacture piston rings for power tools. Pri specializes in manufacturing custom piston and custom seal rings for power generation, aerospace, military, microreactors and industries requiring industrial valves. 

Yes, Pri designs custom piston rings for microreactors that deliver scalable, reliable energy for data centers, military bases, remote towns, oil and gas facilities, and mining operations. The piston rings and sealing components used in microreactors account for thermal growth, material compatibility, and precision tolerances, helping prevent leakage and performance degradation in safety-critical assemblies.

Yes, Pri's custom piston and seal rings provide unsurpassed sealing protection for the green energy applications such as solar energy storage, hydroelectric dams, hydrogen turbines, geothermal, and nuclear power generation

Precision rings, incorporated supports the military with military-grade piston seal rings that are designed for multi-mach defense programs, nuclear-powered naval vessels, revised engineering strategies for greater lift requirements, and performance improvement refurbishment of existing weaponry for a range of military programs.

As a custom piston ring manufacturer that specializes in aerospace, Precision rings, incorporated recommends using high Nickel, and high Cobalt superalloys such as Inconel®, Stellite®, Hastelloy®, and Waspaloy®. While difficult to machine, these superalloys possess excellent high heat, cryogenic, corrosive, and high-pressure qualities that make them ideal for aerospace environments.

Precision rings, incorporated offers our customers world-class service. As part of that service, Precision rings, incorporated offers custom piston ring and custom seal ring design as part of the overall quotation package. Precision rings, incorporated does not offer custom piston ring and custom seal ring design as a standalone service, nor are any designs offered for sale. Precision rings, incorporated does consider all of its designs as proprietary. Please visit our Piston and Seal Ring Design & Engineering page in order to learn more, or feel free to contact us.

Yes, Precision rings, incorporated is ISO 9001:2015 + AS9100D certified. Please visit our Quality Assurance page to view or print a copy of our certificate.

Yes, Precision rings, incorporated is able to perform heat treatment when required for manufacturing purposes. The company is Nadcap approved for heat treatment. Precision rings, incorporated does not offer heat treatment as a separate service. Please visit the Quality Assurance page to download a copy of the Nadcap certificate with the Scope of Accreditation.

Yes, Pri is the premier source for advanced piston and seal ring production services. Our made to order custom piston rings are engineered for performance in demanding industrial environments such as aerospace, power generation, and nuclear applications.

Piston Ring Materials

Surface Treatments

• Dry Films
• Silver Plating
• Chromium Plating
• Phosphate Coatings

Precision rings, incorporated's lead-time for manufacturing involves several variables, including material type and availability, ring complexity and quantity, and other ring features including gap style. Please request a quotation to determine a lead-time. Expedites are often available if needed.