• Main Shaft Seals
  • Gearbox Seals
  • APU Seals
  • OEM Design
  • FAA Repair Station
  • Spare Replacement Kits

Nuclear Seals

  • Reactor Cooling Pump Seals
  • Critical Components Mfg

Marine Seals

  • Bulkhead Seals
  • Gearbox Seals

Power Generation

  • Hydrogen Cooled Generator Seals
  • Cooling Pump Seals
  • Land Based Gas Turbine Seals
  • Gearbox Seals 

"Providing Precision Seals For Over 65 Years"

"Your first choice for Seals and Components"

“Quality Beyond Expectations”

“Aerospace - Nuclear - Industrial”

“Stein Seal is your natural first choice for precision custom sealing solutions”

-Phil Stein




Using advanced engineering technologies and industry-standard design tools, Stein capitalizes on its 65+ years of design, engineering, and development.

Tools such as coordinate measuring machines (CMM) with scanning capabilities for mechanical inspection activities, ANSYS Finite Element Analysis software, a comprehensive tool for the Analytical solutions supported by certified engineers. Finite element analysis: Static, dynamic, thermal, vibration, and fatigue. Computational fluid dynamics: Fluid flow, pressure drop, and thermal change.

Stein has developed over 100 proprietary design and analysis tools. Specialized software, tools, and apps to support the reengineering process. These design and engineering tools serve as the basis of our seal design acumen but support the further development of mechanical, design, engineering, and systems features.

Stein’s precision machining expertise coupled with quality controls built into every step of the process means that our products not only meet, but also exceed the most stringent industry and military standards.

For over 65 years the Stein Seal Company has manufactured, repaired, overhauled and redesigned seals and sealing systems for industrial, aerospace and other applications.

In Stein’s test lab, we can accurately simulate the extreme limits of operating conditions, which allows us to accurately predict and verify performance under the most rigorous operating conditions.


Pennsylvania, USA

Stein Seal Industrial Division
(Outside Philadelphia)
Yucatan, Mexico

Seal and Metal Products
of Latin America
Czech Republic
Stein Seal Czech s.r.o.

Stein Seal News

Our latest news, developments, and events Blog


Assembly Technician Wanted

Assembly Technician Wanted

Stein Seal is a growing seal manufacturing company that is seeking a candidate that will be assembling and inspecting parts received, finished parts and work in process to ensure conformance with...

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Since 1955, Stein Seal Company has been a leading provider of custom designed seals and precision components for use in a wide variety of aerospace, marine and industrial applications.

Careers – “We are Growing!”

Working at Stein

Stein Seal knows it is the knowledge, expertise and effort of our employees that allows us to maintain our position as the premier supplier of seals and specialty machined components. Therefore we make every effort to offer a superior range of benefits along with providing a workplace environment complete with the newest in machinery, technology and educational opportunities.

Our location, just northwest of Philadelphia PA, provides the best in both suburban and metropolitan living with excellent housing, school systems and a wide variety of cultural opportunities.

We welcome your examination of the career opportunities we currently have available, and to contact us with your job qualifications. Stein Seal is an Equal Opportunity Employer.


  • Pension Plan – 100% Company Paid
  • 401 (k) Retirement Savings Plan
  • Comprehensive Medical Coverage Including
    • Vision
    • Prescription
  • Dental Plan
  • Extensive Insurance Coverage For
    • Life
    • Short-Term Disability
    • Long-Term Disability
  • Tuition Refund Programs
  • Credit Union Participation
  • Generous Paid Vacations and 9 Paid Holidays Annually
  • Competitive Salaries
Send inquires to

View Current Positions

“We are GROWING”

→  Click Here to Apply  ←

Q.A. Inspector – Receiving Inspection

The Receiving Inspection Quality Inspector monitors the quality of incoming products or materials for Stein Seal Company. The Inspector will be tasked with conducting inspections, analyzing measurements, and overseeing the production processes to ensure conforming...

Assembly Technician Wanted

Stein Seal is a growing seal manufacturing company that is seeking a candidate that will be assembling and inspecting parts received, finished parts and work in process to ensure conformance with work orders, drawing specifications and customer requirements. ...

Entry Level CNC Machinist – Non Metal

Stein Seal is a growing Manufacturing company in the Aerospace Industry. We are hiring for multiple CNC Operator - Non-Metal associates Must be available for 1st or 2nd shift 1st shift: 7am-3:30 2nd shift: M-T 5:30p-2am F: 3:30p-12am Accountabilities:  Knowledge of...

Mechanical Technician – Engineering Test Lab

Stein Seal Company has an immediate opening for a Mechanical Technician in our Engineering Test Lab that will be responsible for the setup of machinery for, and to carry out the functional testing of mechanical seals as described by the test plan. Also, to assist the...

CNC Machinist – Hiring NOW!

Stein Seal is looking for great people!! Where our team members enjoy what they do and enjoy where they work!! Stein Seal is an Aerospace seal Manufacturer who believes in training and developing their team to further advance their career as well as working in a very...

Manufacturing Manager Wanted (Merida Mexico)

Our Merida, Mexico division Seal and Metal Products is searching for a Hands-on individual needed to oversee and supervise the manufacturing of precision aircraft engine components at our Mexico facility.  Candidate will be responsible for directing and supervising a...

Production Deburring

This position performs the removal of excess metal (burrs) that remain from the machining process as well as metal cleaning and minor assembly.   Accountabilities: Complete removal of burrs from machined parts Strict adherence to company policies and procedures...

Human Resources Manager (Bangalore India)

Stein Seal Company India is seeking a Human Resources Manager to join our plant in Bangalore. The Human Resources manager originates and leads Human Resources practices and objectives that will provide an employee-oriented; high performance culture that emphasizes...

Accounting Manager (Bangalore, India)

Stein Seal Company India is seeking an Accounting Manager to join our team in Bangalore, India! This person will oversee & provide accountability of all financial information, maintain the company’s general ledger accounts and provide monthly and annual financial...

Manual Machinist – Manufacturing 

Manual Machinist – Manufacturing   Stein Seal is GROWING!!! Are you serious about your trade? What’s the future prospect for your career & company? If these issues matter to you, current and long-term projected growth has created openings for experienced...


+1 215-256-0201


Stein Seal Company
P.O. Box 316
1500 Industrial Blvd.
Kulpsville, PA 19443-0316 U.S.A.