OUR CAPABILITIES


  • 16 Modern CNC Machine Tools


  • Multi-Axis Complex Machining


  • Advanced CAD/CAM System


  • Exotic Materials Capability


  • 60+ Years of Experience

  • ISO 9001 & AS9100 Certified


  • Full-Service Manufacturing


  • In-House Gear Manufacturing


  • In-House Grinding & EDM


  • In-House Processing

Learn More about ASPI



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The ASPI Story


Allied Specialty Precision began in 1954 as a screw machine shop in Mishawaka, Indiana. A decade later, the company expanded its capabilities to include general precision machining and assemblies. By 1967, increased demand necessitated a move to a larger facility at our current location in Mishawaka. As the company expanded, our knack for finding innovative solutions earned us a reputation as the "go-to guys" for challenging manufacturing jobs.
aspi building photo

The ASPI facility in Mishawaka

We've earned a reputation as the "go-to guys" for challenging manufacturing projects.

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Today, Allied Specialty Precision (ASPI) is a modern precision manufacturing facility featuring 26,000 square feet of manufacturing space and a team of highly skilled craftsmen and professionals. With a solid management team and a company-wide commitment to excellence, ASPI builds on over seventy years of experience in quality and customer service.

Our extensive range of manufacturing services offers significant advantages to our customers. We utilize advanced CAD/CAM and MRP systems to manage each project through various processes, including CNC machining, gear manufacturing, O.D. grinding, surface grinding, Blanchard grinding, wire EDM, small hole drilling with EDM, honing, broaching, brazing, and pressure, leak, and load testing. Additionally, we provide passivation, deburring, and assembly services.

Our team of skilled craftsmen, experienced management, and advanced manufacturing processes ensure on-time deliveries and consistently high quality for our customers.

Our customers save time and money with Allied Specialty Precision because we control the manufacturing process.

Allied Specialty Precision offers outstanding talent, expertise, and a state-of-the-art manufacturing environment, backed by over seventy years of commitment to quality and customer service. Contact us today.

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ASPI at a Glance


shop solutions article

Machining Gears ‘Not-As-Gears’ Pays Off

“Look beyond the obvious and you may well find a better way to machine a part, and serve your customer better. That’s the lesson illustrated in a gear-machining application at Allied Specialty Precision, Inc.

"To make a long story short, the company dramatically improved the material removal rate and yield while reducing fixture cost and delivery lead time on a family of gears by ‘not treating them as gears.’”

Copyright © 2012 Society of Manufacturing Engineers. All Rights Reserved.

south bend tribune article

Precision isn't Optional

”Everything made by Allied Specialty Precision Inc. flies. And yet, the Mishawaka company is grounded in its focus as an aerospace component manufacturer. Most planes in the United States contain parts made at the plant.

"'We have parts that go in fuel control, brakes, and the landing systems,' said Pam Rubenstein, Allied Specialty's owner and chief executive officer. 'Typically, our parts are small. We measure to a millionth of an inch because when it flies, it's either right or it's dangerous.'"

Copyright © 1994-2011 by South Bend Tribune. All Rights Reserved.

american machinist article

Technology and People Lead to Twice the Sales

"Investing in technology and maintaining a high-quality workforce has helped Allied Specialty Precision, Inc. (ASPI) to double its sales in the past three years. The company prides itself on its workforce and technology.

"ASPI specializes in producing precision hydraulic, fuel control and braking system components for the aerospace industry in materials such as aluminum, high-strength and highalloy steels, Inconel and titanium alloys. In addition to bar stock, they also machine castings and forgings. Pam Rubenstein, ASPI’s owner and chief executive officer, bought the 54-year-old company in 2005 and has realigned it to make it more cost driven and competitive…"

Copyright © 2008 by Penton Media, Inc. All Rights Reserved.

aerospace and defense manufacturing

Lessons in Multitasking

"Who better to get things done right the right way than a teacher? Owner and CEO Pam Rubenstein admits it was 'quite an adjustment and very challenging' to give up her career as a teacher to go into the precision-machining business at Allied Specialty Precision Inc. (ASPI—Mishawka, IN). Rubenstein arrived at ASPI in 1989 after a successful career teaching at the high school and college levels, and began to work her way through various positions in the office and factory. In 2005, she purchased the company.

"At first look, Allied Specialty Precision Inc. appears to be simply another good-quality provider of components and subassemblies for aerospace applications, but it’s much more…"

Copyright © 2008 by Society of Manufacturing Engineers. All Rights Retained.

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Building a Modern Manufacturing Environment

December 2008

For more than seven decades, our commitment to continuous innovation and exceptional customer service has driven our success. We utilize the latest CNC machine tools to stay at the forefront of precision machining technology. We regularly update our equipment to maximize efficiency, minimize downtime, and provide our customers with competitive pricing, dependable deliveries, and uncompromising quality.

Recently, we replaced several older CNC machine tools with two new machining centers and two new turning centers. These state-of-the-art, multi-axis Mazak machine tools feature high-speed capabilities, automated loading, and laser tool management systems, all designed for precise, cost-effective production.

Allied Specialty Precision is dedicated to maintaining excellence in quality, value, and customer satisfaction through our investment in modern machining technology. You can count on us.

cnc machine tools

New Mazaks Increase CNC Turning Capacity

December 2008

Allied Specialty Precision has recently added two advanced Mazak turning centers to replace three older CNC machines. Our new Integrex 100-IV ST turning center features a 6,000 RPM main spindle, a 12,000 RPM rotary tool spindle, a second spindle, dual turrets, an automatic tool changer, and a bar feeder. Additionally, our new Quickturn 200-II MSY turning center is equipped with robotic loading, an 8-inch chuck, and a maximum swing capacity of 26.5 inches. It also includes dual spindles and a rotary tool spindle.

These state-of-the-art machines are designed to eliminate the need for multiple setups, reduce parts handling, and minimize downtime, resulting in increased value for our customers. This "done-in-one" manufacturing technology significantly reduces setup time, allowing for smaller lot sizes to meet your Just-In-Time (JIT) delivery requirements. You can rely on ASPI and our ongoing commitment to cutting-edge precision machining technology.

american machinist cover

ASPI Receives Top Ten Award

December 2008

Allied Specialty Precision was featured in the November 2008 issue of American Machinist as one of the top ten precision machine shops in the USA for that year. To qualify for this prestigious award, candidates are selected based on hard data and undergo on-site evaluations by the editors of American Machinist. According to Bruce Vernyi, the editor-in-chief, “These shops are defined by their detailed plans that lead to success; they passionately follow these plans and measure their progress by assessing where they were, where they are, and where they intend to be.”

Allied Specialty Precision takes pride in being recognized for our ongoing commitment to precision machining excellence, as well as our innovative and efficient approach to the manufacturing process.

Copyright © 2008 by Penton Media, Inc. All Rights Reserved.

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New Zeiss CMM Simplifies Quality Assurance

December 2008

In a cutting-edge manufacturing environment, utilizing the latest automated quality assurance technology is essential to keep pace with the significant advancements in precision machining techniques. To ensure accurate and efficient handling of close-tolerance inspection requirements, Allied Specialty Precision has invested in a new Zeiss Prismo Navigator CMM equipped with Calypso software.

This advanced measuring system features a VAST® universal probe that automatically adjusts to each measuring task. It quickly determines size, form, and position in a single operation using both contact and optical measurements. With an xyz capacity of 900mm x 1200mm x 700mm and a linear measuring tolerance of ±0.0016mm, our new Zeiss CMM is equipped to meet your most demanding quality requirements with the high accuracy and reliability that has defined ASPI for over seventy years.

70+ years of Quality Aerospace Manufacturing.

Call Us at (574) 255-4718