SIST EN 4008-015:2009

Overview

EN 4008-015:2007 is a European product standard in the Aerospace series that specifies the required characteristics for the positioner used with the crimping tool M22520/2-01 to crimp electrical contacts per EN 4008-002. Published by CEN/ASD-STAN, this standard defines the physical, mechanical and marking requirements for the positioner that secures and locates contacts during crimping operations for aerospace electrical and optical connections.

Key topics and technical requirements

• Scope: Characteristics of the positioner used with M22520/2-01 crimping tool for contacts listed in EN 4008-002.
• Functional description: Positioner retention uses two bayonets plus an internal spring-loaded central moving part (locator). Contact positioning is achieved by the contact butting against a shoulder in the central bore.
• Spring/locator requirement: Locator must be spring-loaded to depress 0.79 mm with a force of (9 ± 4.5) N.
• Dimensions and mass:
  • Mass: max 11 g
  • Key dimensional tolerance practice: dimensions in millimetres; general tolerances ± 0.25 mm
  • Bayonet lock pin diameter: Ø 1.09 ± 0.025 mm
• Materials and finish:
  • Positioner body: aluminium alloy, color blue
  • Locator: stainless steel
• Marking and designation:
  • Required stamp: "EN4008-015 use with M22520/2-01" (conforming to MIL‑C‑22520/2)
  • Standard designation example: POSITIONER / EN4008-015
• Referenced specifications: EN 2591-100 (test methods), EN 4008-001 (technical specification), EN 4008-002 (product list), and MIL‑C‑22520/2 (tool family).

Applications and users

• Aerospace manufacturers and OEMs specifying tooling for electrical harness assembly.
• Tool and accessory manufacturers designing or certifying positioners and crimping fixtures.
• Quality, production and maintenance engineers validating crimp tooling compatibility and interchangeability with M22520/2-01 tools.
• Procurement teams referencing product standards for sourcing compliant positioners.
• Test laboratories using EN 2591-100 and EN 4008-001 for inspection and conformity checks.

Practical value

• Ensures consistent contact positioning and repeatable crimps critical to aerospace electrical system reliability.
• Supports interchangeability across suppliers by standardizing dimensions, materials, marking and functional requirements.
• Facilitates compliance with aerospace procurement and quality systems where traceable tooling specifications are required.

Related standards

• EN 4008-001 - Technical specification for crimping tools and accessories
• EN 4008-002 - List of product standards for crimping accessories (contacts)
• EN 2591-100 - General test methods for elements of electrical and optical connection
• MIL‑C‑22520/2 - US Department of Defense reference for M22520 tool family

Keywords: EN 4008-015:2007, positioner, crimping tool M22520/2-01, aerospace crimping, electrical contact crimp, EN 4008-002, tooling standard, positioner dimensions, locator spring force.