MS25083-5BB4 - Textron Aviation OEM Jumper Cable Assembly

MS25083-5BB4 – Textron Aviation OEM Jumper Cable Assembly

Available now on the Airparts.aero Marketplace.

Overview

The MS25083-5BB4 is a military-standard electrical bonding jumper, a flight-critical component designed to create a low-impedance electrical connection between two separate components or structures on an aircraft. This specific jumper is engineered to ensure electrical potential equalization, providing a reliable path for static electricity discharge, lightning protection, and fault current return. It features a flat, flexible, tinned-copper braid terminated on both ends with 90-degree bent lugs. As a certified MS-standard part specified by Textron Aviation, it guarantees the correct material, conductivity, and construction required for maintaining the electrical integrity and safety of the airframe.

Key Features

• Low-Impedance Path: The flat, braided construction provides a large surface area, which is highly efficient at conducting high-frequency electrical energy (the "skin effect"). This makes it far superior to standard round wire for dissipating static charges and EMI.
• Tinned Copper Braid: Fabricated from finely stranded, woven copper wire and plated with tin. The tin plating provides excellent corrosion resistance and ensures a reliable, low-resistance electrical connection at the crimped terminals.
• Vibration & Fatigue Resistance: The inherent flexibility of the braided strap allows it to withstand the high-frequency vibrations of an aircraft without work-hardening or fatiguing like a solid conductor would, ensuring a durable, long-lasting connection.
• Pre-Terminated Lugs: Comes as a complete assembly with pre-installed, 90-degree bent terminal lugs, providing a ready-to-install solution with a secure mounting point on each end.
• MS Certified Standard: Manufactured in strict accordance with the MS25083 specification, guaranteeing its electrical performance, material quality, and dimensional tolerances are certified for airworthy applications.

Technical Specifications

• Standard: MS25083 (Jumper, Electrical Bonding and Grounding)
• Full Part Number: MS25083-5BB4
• Braid Material (B): Wire Stranded Tinned Copper
• Insulation (B): None (Uninsulated)
• Terminal Configuration (5): 90-Degree Bent Lug on both ends, with a 0.198" diameter mounting hole.
• Overall Length (4): 4.0 inches
• Braid Width: 1/2 inch
• Current Carrying Capacity: Rated for continuous and fault current based on the MS standard.
• Bonding (lightning)
• Wire gauge: 12
• Terminal A stud size: No. 8 or No. 10
• Terminal B stud size: No. 8 or No. 10
  

Aircraft Compatibility

The MS25083-5BB4 is a universal bonding jumper used across all types of Textron Aviation aircraft (Cessna, Beechcraft) and other military and commercial platforms. Its application is determined by the aircraft's engineering drawings and structural repair manuals.

• Common Applications:
  • Primary Structure Bonding: Electrically connecting major airframe components like the wings, empennage, and fuselage.
  • Flight Control Bonding: Ensuring flight control surfaces (ailerons, elevators, rudder) are electrically bonded to the main structure to safely dissipate static electricity.
  • Engine & Cowling Bonding: Grounding the engine and its cowlings to the main airframe to provide a path for static discharge and starter motor return current.
  • Fuel System Bonding: Connecting fuel tanks, filler necks, and plumbing to the airframe to prevent static sparks in the presence of fuel vapors.

Applications

This jumper is essential for the electrical health and safety of the aircraft:

• Static Discharge: Provides a path for P-static (precipitation static) to safely dissipate, preventing it from building up and interfering with navigation and communication radios.
• Lightning Protection: Part of the aircraft's lightning protection scheme, helping to conduct the immense energy of a lightning strike safely along the airframe to be discharged.
• EMI/RFI Shielding: Creates a "ground plane," reducing electromagnetic and radio frequency interference between various avionics and electrical systems.
• Fault Current Return: Ensures a low-resistance path back to the electrical ground in the event of a short circuit, allowing circuit breakers to trip reliably.

Why Choose MS25083-5BB4?

A missing or corroded bonding jumper can lead to a host of dangerous and difficult-to-diagnose problems, from noisy radios to uncommanded system resets or even lightning-induced structural damage. Using a genuine MS25083-5BB4 jumper ensures that you are installing a component with the certified conductivity and durability required by the aircraft manufacturer. The integrity of the aircraft's entire electrical and protection system relies on the quality of these critical connections. For an airworthy repair, there is no substitute for certified hardware.

Order Your MS25083-5BB4 Bonding Jumpers Now

Ensure the electrical integrity and safety of your aircraft with certified MS-standard components. Visit Airparts.aero to order your MS25083-5BB4 bonding jumpers today.

The MS25083-5BB4 bonding jumper is specifically designed to address the "skin effect," an electrical phenomenon where high-frequency alternating currents (like those from radio transmissions or a lightning strike's initial pulse) tend to flow only on the outer surface or "skin" of a conductor. The flat, wide braid of the MS25083 jumper provides a significantly larger surface area than a round wire of the same cross-sectional area, creating a much lower impedance path for these high-frequency currents. This makes it exceptionally effective at its primary job: safely conducting unwanted electrical energy away from sensitive components and structures.

Applicable Textron Aircraft

• Beechjet 400/400A
• Citation CJ2 or CJ2+
• Citation CJ3 or CJ3+
• Citation Mustang
• Citation Sovereign or Sovereign+
• Citation V, Ultra, Encore or Encore+
• Citation XLS, XLS+ or XLS Gen2
• King Air 360, 350i or 350C FM-36 & on
• King Air B200GT or B200CGT

List not comprehensive, may be applicable on other models.

Note: Installation of bonding jumpers is a critical maintenance task. Mounting surfaces must be clean of all paint, primer, and corrosion to ensure a bare metal-to-metal connection. The fasteners used to secure the terminal lugs must be torqued to the value specified in the aircraft's maintenance manual to guarantee a low-resistance connection.