Glenair 447HS427M1918-5 EMI Backshell

These are typically used with MIL-DTL-38999 Series III/IV connectors. The part number “M” indicates an Electroless Nickel finish. 

• EMI/RFI Shielding: They are designed to provide 360° grounding without damaging shielding. They are compatible with different shield termination methods, such as banding backshells which utilize a band strap (not supplied) to attach the cable shielding.
• Strain Relief: They can provide strain relief for cable assemblies, protecting the wire-to-connector terminations from damage due to vibration, shock, or handling.
• Environmental Protection: Some models, like the Series 39, are designed to provide both EMI protection and environmental sealing, using O-rings and grommets to create a watertight seal.
• Self-Locking: Many Glenair backshells feature a self-locking mechanism that provides an audible detent upon coupling and prevents accidental decoupling under high vibration.