Size (CM)：31.5*13*22.5

Weight (KG)：1.17

MS21914-4W is a NAS-standard precision alignment drive pin categorized under aviation maintenance tools, developed specifically for alignment and temporary fastening tasks during aircraft structural component replacement and scheduled heavy maintenance. This precision tool strictly conforms to the Aerospace Standard (NAS) MS21914 specification, with standardized dimensional tolerance matching common aerospace fastener installation requirements, delivering stable positioning accuracy for commercial airline and MRO (Maintenance, Repair and Overhaul) maintenance workflows.

Manufactured from heat-treated high-strength alloy steel with cadmium-free anti-corrosion plating, MS21914-4W maintains excellent mechanical strength and fatigue resistance under repeated daily use, fully meeting FAA-mandated material and performance requirements for aviation maintenance tooling. Its compact knurled handle design provides a non-slip, comfortable grip for maintenance technicians, cutting operation time and improving the overall efficiency of structural maintenance tasks.