AS9100D Certified Aerospace Machining Services

When aerospace components demand zero tolerance for failure, Criterion Precision Machining delivers. With decades of precision machining expertise, AS9100D-compliant processes, and advanced multi-axis capabilities, we produce mission-critical aerospace parts—from lightweight structural components to complex defense system hardware—with tolerances down to ±.0002". Trusted by leading aerospace and defense manufacturers across the United States.

AS9100D certified aerospace precision machined components on an inspection table at Criterion Precision Machining

Our Aerospace Machining Services

End-to-end precision machining solutions engineered for aerospace and defense applications demanding absolute accuracy and compliance.

CNC Milling

Precision multi-axis CNC milling for complex aerospace components. Our 3-, 4-, and 5-axis capabilities deliver tight tolerances and consistent repeatability for structural and system-critical parts.

CNC Turning

High-precision CNC turning for cylindrical and complex geometry aerospace parts. We hold tolerances to ±.0002" across titanium, stainless steels, and high-performance alloys critical to aerospace applications.

Swiss Turning

Swiss turning expertise for small-diameter, intricate aerospace components with micro-sized features. Ideal for slender, high-precision parts requiring exceptional surface finishes and tight tolerances.

Aerospace Prototyping

Production-intent aerospace prototyping machined to the same standards as full production orders. Seamlessly transition from approved prototype to high-volume runs with no reprogramming required.

Quality Inspection

Certified quality inspection using CMM, OASIS optical systems, and Keyence measuring tools. Full documentation including Certificates of Conformance and final inspection reports included at no charge.

Materials Expertise

Skilled machining of aerospace-grade materials including titanium, stainless steels, aluminum, specialty plastics, and high-performance alloys—meeting the demanding requirements of aerospace and defense programs.

Mission-Critical Quality

Precision Aerospace Machining Built for Zero Failures

Aerospace components leave no room for compromise. At Criterion Precision Machining, our AS9100D-compliant processes ensure every part machined for aerospace and defense applications meets the most stringent industry standards. From lightweight aircraft structural components to precision defense system hardware, we leverage advanced 5-axis CNC milling, multi-axis Swiss turning, and certified inspection systems to deliver parts that perform flawlessly. Serving aerospace manufacturers across the United States from our Brook Park, Ohio facility, we bring over 70 years of machining legacy to every order.

Criterion Precision Machining aerospace component being inspected on CMM equipment
Trusted By Industry Leaders

Success Stories

See how Criterion delivers precision and reliability for aerospace, defense, and mission-critical manufacturers nationwide.

"Criterion's Swiss turning capabilities are exceptional. We've relied on them for five years to produce our surgical instrument components with tolerances down to ±.0002". Their consistency is unmatched."

Dr. Michael Chen

"We were struggling with meeting ITAR compliance requirements until we partnered with Criterion. Their FDA and ITAR registration solved our regulatory headaches instantly."

James Whitmore

"As9100d certified machining from Criterion gives us the confidence we need for aerospace components. Their quality documentation and inspection protocols are industry-leading."

Patricia Morrison

"We needed 500 micro-parts in three weeks. Criterion's 5-axis Swiss turning delivered on time without compromising on our tight ±.0002" tolerances. Remarkable responsiveness."

Roberto Sanchez

"Criterion's quality inspection service with their Global Advantage CMM and OASIS system is comprehensive. Zero defects in our last production run of 10,000 parts. Outstanding ROI."

Linda Thompson

"We've worked with Criterion for over a decade. Their CNC milling expertise on complex titanium aerospace components combined with their reliability is invaluable to our program."

David Park

"As9100d certified machining isn't just a checkbox for Criterion—it's embedded in their culture. Their proactive approach to aerospace compliance standards sets them apart from competitors."

Christopher Hughes

"Criterion's prototyping service with production-intent quality allowed us to validate our photonics design before committing to full manufacturing. Seamless transition to production afterward."

Dr. Sanjay Patel

"Criterion's Swiss turning capabilities are exceptional. We've relied on them for five years to produce our surgical instrument components with tolerances down to ±.0002". Their consistency is unmatched."

Dr. Michael Chen

"We were struggling with meeting ITAR compliance requirements until we partnered with Criterion. Their FDA and ITAR registration solved our regulatory headaches instantly."

James Whitmore

"As9100d certified machining from Criterion gives us the confidence we need for aerospace components. Their quality documentation and inspection protocols are industry-leading."

Patricia Morrison

"We needed 500 micro-parts in three weeks. Criterion's 5-axis Swiss turning delivered on time without compromising on our tight ±.0002" tolerances. Remarkable responsiveness."

Roberto Sanchez

"Criterion's quality inspection service with their Global Advantage CMM and OASIS system is comprehensive. Zero defects in our last production run of 10,000 parts. Outstanding ROI."

Linda Thompson

"We've worked with Criterion for over a decade. Their CNC milling expertise on complex titanium aerospace components combined with their reliability is invaluable to our program."

David Park

"As9100d certified machining isn't just a checkbox for Criterion—it's embedded in their culture. Their proactive approach to aerospace compliance standards sets them apart from competitors."

Christopher Hughes

"Criterion's prototyping service with production-intent quality allowed us to validate our photonics design before committing to full manufacturing. Seamless transition to production afterward."

Dr. Sanjay Patel

"Criterion's Swiss turning capabilities are exceptional. We've relied on them for five years to produce our surgical instrument components with tolerances down to ±.0002". Their consistency is unmatched."

Dr. Michael Chen

"We were struggling with meeting ITAR compliance requirements until we partnered with Criterion. Their FDA and ITAR registration solved our regulatory headaches instantly."

James Whitmore

"As9100d certified machining from Criterion gives us the confidence we need for aerospace components. Their quality documentation and inspection protocols are industry-leading."

Patricia Morrison

"We needed 500 micro-parts in three weeks. Criterion's 5-axis Swiss turning delivered on time without compromising on our tight ±.0002" tolerances. Remarkable responsiveness."

Roberto Sanchez

"Criterion's quality inspection service with their Global Advantage CMM and OASIS system is comprehensive. Zero defects in our last production run of 10,000 parts. Outstanding ROI."

Linda Thompson

"We've worked with Criterion for over a decade. Their CNC milling expertise on complex titanium aerospace components combined with their reliability is invaluable to our program."

David Park

"As9100d certified machining isn't just a checkbox for Criterion—it's embedded in their culture. Their proactive approach to aerospace compliance standards sets them apart from competitors."

Christopher Hughes

"Criterion's prototyping service with production-intent quality allowed us to validate our photonics design before committing to full manufacturing. Seamless transition to production afterward."

Dr. Sanjay Patel
The Criterion Difference

Why Choose Criterion Precision Machining?

We bring decades of proven precision machining expertise, rigorous quality systems, and a commitment to zero-failure performance to every aerospace program.

AS9100D Compliance

Our quality management systems meet AS9100D, ISO 9001, and ISO 13485 standards—ensuring full aerospace and defense regulatory compliance.

Ultra-Tight Tolerances

We consistently hold tolerances down to ±.0002" on complex aerospace geometries across titanium, stainless steel, and specialty alloys.

70+ Years of Legacy

Founded in 1953, Criterion has served U.S. aerospace and defense manufacturers for over seven decades from our Ohio facility.

Advanced Inspection Systems

Our Global Advantage CMM, OASIS optical inspection, and Keyence systems deliver documented, traceable quality on every aerospace part shipped.

Meet The Criterion Team

Experienced professionals dedicated to precision, quality, and aerospace excellence.

Tanya DiSalvo, President of Criterion Precision Machining

Tanya DiSalvo

President

As the third-generation owner of Criterion Precision Machining, Tanya DiSalvo leads the company with a commitment to quality, innovation, and serving mission-critical industries. Under her leadership, Criterion has continued its evolution from a general machine shop—founded in 1953—into a specialized precision machining partner for aerospace, defense, medical device, and photonics sectors. Tanya is passionate about maintaining the high standards that have defined Criterion for over 70 years while driving investment in advanced technology and quality systems. As a WBENC-certified woman business owner, she champions diversity and excellence in the manufacturing industry, ensuring Criterion remains a trusted partner for customers who accept nothing less than perfection.

Mike Pinchot, Estimator and Project Manager at Criterion Precision Machining

Mike Pinchot

Estimator/Project Manager

Mike Pinchot serves as Estimator and Project Manager at Criterion Precision Machining, acting as a critical bridge between customer requirements and shop floor execution. With deep knowledge of precision machining processes, materials, and aerospace quality standards, Mike ensures that every project is accurately scoped, competitively priced, and delivered on schedule. He works closely with aerospace and defense customers to understand their most demanding specifications, translating complex engineering requirements into actionable production plans. Mike's attention to detail and project management discipline help Criterion consistently meet the exacting standards required for mission-critical aerospace components, from initial quote through final shipment.

David Glass, Chief Financial Officer at Criterion Precision Machining

David Glass

Chief Financial Officer

David Glass serves as Chief Financial Officer at Criterion Precision Machining, overseeing the financial operations that support the company's long-term growth and stability. With a thorough understanding of the manufacturing sector's financial landscape, David ensures that Criterion remains well-positioned to invest in the advanced equipment, quality systems, and skilled personnel required to serve aerospace and defense customers. His financial stewardship supports the company's ability to take on complex, long-term aerospace programs while maintaining the agility and responsiveness that customers have come to expect from Criterion over its more than 70-year history.

Kelly Marflak, Quality Manager at Criterion Precision Machining

Kelly Marflak

Quality Manager

Kelly Marflak is Criterion's Quality Manager, responsible for maintaining and continuously improving the company's certified quality management systems, including ISO 9001, ISO 13485, and AS9100D-compliant processes. Kelly oversees all precision inspection activities, manages documentation protocols, and ensures that every aerospace and defense component leaving the facility meets or exceeds customer specifications. Under her leadership, Criterion's quality department leverages a Global Advantage CMM, OASIS optical inspection, and Keyence measurement systems to deliver fully traceable, documented quality on every part. Kelly's dedication to zero-defect outcomes is central to Criterion's reputation as a trusted partner in no-failure industries.

Kellyanne Gottschalk, Internal Systems Manager at Criterion Precision Machining

Kellyanne Gottschalk

Internal Systems Manager

Kellyanne Gottschalk manages Criterion's internal systems, ensuring that the company's operational infrastructure—including the ProShop ERP platform—runs efficiently and supports seamless production workflows. Her role is instrumental in maintaining data integrity, process documentation, and cross-departmental coordination that is essential for AS9100D and ISO-compliant aerospace manufacturing. Kellyanne's systems management expertise ensures that customer orders, production schedules, quality records, and compliance documentation are all managed with the precision and traceability demanded by aerospace and defense customers. Her work underpins Criterion's ability to scale and respond quickly to evolving customer requirements.

Nilda Feliciano, Customer Service at Criterion Precision Machining

Nilda Feliciano

Customer Service

Nilda Feliciano is Criterion's dedicated Customer Service representative, serving as the primary point of contact for customers throughout the order lifecycle. She ensures that aerospace and defense customers receive clear, timely communication from the moment an inquiry is placed through final delivery. Nilda's commitment to responsive, attentive service reflects Criterion's broader dedication to partnership—understanding that customers in no-failure industries need a supplier they can rely on not just for quality parts, but for reliable communication and support. Her role is central to building the long-term customer relationships that have defined Criterion's success for over seven decades.

Bonnie Paletta, Office Administrator at Criterion Precision Machining

Bonnie Paletta

Office Administrator

Bonnie Paletta serves as Office Administrator at Criterion Precision Machining, providing the organizational backbone that keeps day-to-day operations running smoothly. From managing administrative workflows to coordinating internal communications and supporting compliance documentation, Bonnie plays a vital behind-the-scenes role in Criterion's operational success. Her attention to detail and organizational skills ensure that the administrative side of the business meets the same high standards of accuracy and reliability that Criterion's customers expect from its machined components. Bonnie's contributions are an essential part of delivering a seamless, professional experience to aerospace and defense customers from first contact through final delivery.

Frequently Asked Questions

What is AS9100D certification?

AS9100D is the internationally recognized quality management system standard for the aviation, space, and defense industries. It builds upon ISO 9001 and adds additional requirements specific to aerospace, such as risk management, configuration control, and first article inspection, ensuring suppliers consistently meet the rigorous quality and safety demands of aerospace programs.

What is the AS9100D standard for aerospace?

What does it mean for a company to receive an AS9100 certificate?

What is considered precision machining?

What aerospace materials does Criterion Precision Machining work with?

Does Criterion offer aerospace prototyping services?

What quality inspection capabilities does Criterion have for aerospace parts?

Is Criterion Precision Machining ITAR registered?

Still Have Questions About Our Aerospace Services?

Our aerospace machining experts are ready to discuss your project requirements and quality needs.

Where We Serve

Criterion Precision Machining delivers AS9100D-compliant aerospace components to manufacturers and programs across the entire United States.

Nationwide U.S.

Service Area

Brook Park, Ohio

Headquarters

Since 1953

In Business

Ready to Start Your Aerospace Machining Project?

Contact us to discuss your specifications, tolerances, and program requirements with our team.

Certified & Trusted

Awards and Recognition

ISO 9001 Quality Management Certification logo

ISO 9001 Certified

Internationally recognized quality management system certification.

ISO 13485 Medical Device Quality Management Certification logo

ISO 13485 Certified

Medical device quality management system certification.

WBENC Women's Business Enterprise National Council certification logo

WBENC Certified

Women's Business Enterprise National Council certified supplier.

Get a Quote for Your Aerospace Machining Project

Share your part drawings, tolerances, and material requirements with our team. We'll respond promptly with a competitive quote and confirm our ability to meet your AS9100D compliance and schedule requirements.

Contact Us Today

For immediate assistance, feel free to give us a direct call at 216-267-1733 You can also send us a quick email at office@criteriontool.com