Malin MS20995C Stainless Steel Safety Wire Lockwire, 304 Stainless, Military Specification, Canister Format for Aviation Fastener Safety Wiring
Safety wiring is one of aviation's oldest and most reliable methods of securing critical fasteners against vibration-induced loosening, and the quality of the wire used directly affects the quality and reliability of the safety wire installation. Supplied by JHEARs Aerospace, Malin MS20995C safety wire is manufactured from 304 stainless steel to military specification, delivering the combination of tensile strength, flexibility, and corrosion resistance that aviation maintenance demands from a lockwire product. It twists cleanly and holds its form through the wiring process without kinking mid-twist or breaking before the pigtail is complete, which are the failure modes that turn a routine safety wiring task into a frustrating rework.
The canister format keeps the wire organised, tangle-free, and dispensing cleanly throughout the entire reel rather than the wire tangling and kinking as it comes off a loose coil mid-job. For mechanics safety wiring oil caps, drain plugs, structural fasteners, and any critical hardware that the maintenance manual requires to be safety wired, having mil-spec Malin MS20995C wire on the bench is the baseline of correct practice. The corrosion resistance of 304 stainless ensures the wire remains serviceable in the installed environment without oxidising and degrading between inspection intervals.
Spec: Malin MS20995C stainless steel safety wire, 304 stainless, military specification. Canister format for tangle-free dispensing. Available in standard aviation lockwire diameters. Suitable for safety wiring oil caps, drain plugs, structural fasteners, and critical hardware on all aircraft types where lockwire is specified in maintenance documentation.
Who this is for: Aircraft mechanics and A and P technicians safety wiring critical fasteners and components as required by aircraft maintenance documentation, MRO engineers who require mil-spec stainless safety wire for compliance with maintenance manual lockwire requirements, and any aviation maintenance professional for whom wire quality and reliable dispensing from the canister are non-negotiable on the job.
FAQ
What diameter is MS20995C safety wire and what applications is it suited to?
MS20995C safety wire is available in standard aviation lockwire diameters including 0.020, 0.025, and 0.032 inch, with the specific diameter suffix indicated in the full part number. The correct diameter for a specific application is determined by the aircraft maintenance manual or component service documentation. Using the correct diameter for each application is a maintenance requirement, not a preference.
Why is 304 stainless steel the standard material for aviation safety wire?
304 stainless steel provides the combination of tensile strength for secure fastener retention, flexibility for clean twisting without brittle fracture, and corrosion resistance for long-term serviceability in the installed environment. These properties make it the standard material for aviation lockwire across military and civil maintenance applications.
Does the canister format affect how the wire is used compared to a coil?
The canister format dispenses wire cleanly from the centre of the reel, preventing the tangles and kinks that can occur when wire is pulled from a loose coil. This makes the wire easier to handle during the safety wiring process and reduces the waste from wire damaged by tangling before it reaches the fastener.
Why should I purchase my safety wire from JHEARs Aerospace?
At JHEARs Aerospace, we supply mil-spec aviation safety wire and lockwire products sourced to ensure specification compliance and material authenticity. Our range gives mechanics and MRO operations confidence that the wire they are installing meets the documented requirements for the fasteners and components it is securing.
