EN 4008-014:2006

Overview

EN 4008-014:2006 is a European standard developed by CEN under the aerospace series for electrical and optical connection elements. It specifically defines the product standard for the turret used with the M22520/31 crimping tool-an essential component for crimping electrical contacts as per EN 4008-002. This standard ensures uniformity, reliability, and performance in aerospace electrical connections, facilitating high-quality crimping in critical applications.

Key Topics

• Scope and Purpose
  This standard specifies the technical characteristics and requirements for the turret assembly designed to fit the M22520/31 crimping tool. Its precise design is vital for positioning and securing electrical contacts during the crimping process.

• Design and Construction

  • The turret body is made from aerospace-grade aluminium alloy with a durable blue surface finish.
  • The turret’s locator component is constructed from stainless steel, ensuring durability and corrosion resistance.
  • Securing mechanisms include two bayonets and a spring-loaded central moving part (locator) to provide accurate contact positioning.

• Dimensions and Tolerances
  The turret dimensions are given in millimeters with tight tolerances (±0.25 mm) to maintain consistency and compatibility with the crimping tool indenters.

• Marking and Identification
  Each turret is marked with the EN 4008-014 standard number along with manufacturer identifiers, facilitating traceability and standard compliance.

• Normative References
  This standard references additional specifications for electrical contacts, crimping tools, and test methods including:

  • EN 2591-100 (Test methods)
  • EN 3155 series (Electrical contacts)
  • EN 4008-001 & EN 4008-002 (Crimping tools technical specs and product standards)
  • MIL-C-22520/31 (U.S. military specification for crimping tools)

Applications

EN 4008-014:2006 is critical in aerospace manufacturing and maintenance processes that require reliable electrical connections. The turret and M22520/31 crimping tool system are widely used for:

• Aircraft Wiring Harnesses
  Ensuring secure crimped connections for electrical contacts in avionic systems and wiring harness assemblies.

• Aerospace Electrical Systems
  Maintaining high-quality electrical continuity, resistance to vibration, and environmental durability typical in aerospace applications.

• Quality and Compliance Control
  Standardization enables manufacturers worldwide to meet stringent aerospace requirements and regulatory approvals, minimizing defects and assembly failures.

Related Standards

To fully leverage the compliance benefits of EN 4008-014:2006, it is important to consider related standards in the aerospace electrical connection domain:

• EN 4008-001 – Technical specifications for crimping tools and associated accessories.
• EN 4008-002 – List of product standards related to crimping tools and contacts.
• EN 2591-100 – Aerospace test methods relevant to electrical and optical connections.
• EN 3155-030 and EN 3155-031 – Product standards for coaxial electrical contacts designed for aerospace applications.
• MIL-C-22520/31 – Military specification used extensively as a benchmark for terminal hand crimping tools.

Keywords: EN 4008-014, aerospace standard, crimping tool turret, M22520/31, aerospace electrical connections, crimping tools, electrical contact crimping, aerospace wiring harness, CEN standards, aerospace crimping tools, electrical connector accessories.