Masselin has been providing parts for the aerospace and space sectors for more than 20 years. Our customers from this sector are attracted by our level of expertise in this field and our reliability. With extremely high requirements for quality, documentation, reliable processes and on-time delivery, this sector can rely on Masselin as its partner of choice.




Our parts are used in the following :

  • Engines
  • Flight control
  • Wings
  • Brakes
  • Hydraulic circuits
  • Doors
  • Actuators
  • Landing gears
  • Cockpits
  • Interiors

As well as many other applications.

Our design office will help you through every stage of the design process for new parts, from build to spec. Our customers' design offices recognise us as a quality technical partner.

Images domaines
Aero Espace
Aero espace
Familles de produits


We work as tier 1 for OEMs, tier 2 for equipment manufacturers and tier 3 for subcontractors.

We cover the full range of springs :

  • Compression
  • Tension
  • Torsion
  • Spring Washers
  • Torsion bars
  • Shaped springs, flat and from wire
  • Elastic sub-assemblies
  • Pins
  • Rings
Images familleDeProduits
Variété ressort
Ressort spirale
Barre de torsion
Rondelle Belleville
En savoir plus


Parts undergo testing in our workshop to ensure that they meet the strictest requirements for the greatest reliability :

  • Hardness testing
  • Size testing
  • Lengths under load and vertical stiffness
  • Non-destructive test (magnetic particle inspection, dye penetrant inspection etc.)
  • Metallographic testing (metallurgical structure, decarburisation etc.)
  • Shot peening intensity measurements
  • Failure analysis with research into the cause of rupture, if required

Raw materials :

For medium and large-sized springs, (Ø 18–97 mm), we use low alloy steels 51CrV4 and 52CrMoV4 in accordance with the standard EN 10089. Ultra-sonic testing is available on request to detect any internal defect. For smaller springs, there is the option of using stainless steels, nickel-based alloys (Inconel, Nimonic etc.), titanium (Grade 5 Ti-6Al-4V), copper beryllium (CuBe2) etc.

Specialist processes :

Drawing on a wealth of authorised suppliers, we collaborate with subcontractors to offer standard surface treatments, such as special paints, many different forms of protection, non-destructive testing and shot peening, to name but a few.

Discover all of our certifications

We are a member of NAE (Normandie AeroEspace), whose website is as follows: