The part number **507-059NF05GR** refers to a high-performance electrical connector backshell manufactured by **Glenair**. This specific component belongs to their series of D-Subminiature accessories, designed for ruggedized military and aerospace applications. --- ### 1. Technical Specifications Breakdown The part number is alphanumeric, where each segment defines a specific physical or electrical characteristic: | Segment | Feature | Description | | :--- | :--- | :--- | | **507** | Product Series | Glenair Series 507: D-Subminiature Backshells | | **059** | Style | Standard Profile, Top Entry / Straight Exit | | **NF** | Material & Finish | Aluminum Alloy with Olive Drab Cadmium over Electroless Nickel | | **05** | Shell Size | Size 05 (Corresponds to a 50-contact standard D-sub layout) | | **G** | Hardware Option | Male Jackscrews (for securing the connector) | | **R** | Specific Variation | Identifies specific slotting or EMI/RFI shielding features | --- ### 2. Key Physical Characteristics * **Material:** High-strength Aluminum alloy. * **Finish (NF):** Cadmium plating provides excellent corrosion resistance (typically 500+ hours of salt spray testing) and electrical conductivity for grounding. * **EMI/RFI Protection:** This backshell is designed to provide 360° shielding to prevent electromagnetic interference from affecting signal integrity. * **Mounting:** Equipped with jackscrews, allowing the backshell to be securely fastened to a mating connector or bulkhead. --- ### 3. Primary Functions in Electronic Systems 1. **Strain Relief:** It protects the delicate solder or crimp joints of the wires from being pulled or damaged. 2. **Environmental Protection:** The "NF" finish is designed for harsh environments, protecting the internal wiring from moisture, dust, and oxidation. 3. **Shielding:** In high-frequency or sensitive data applications, the metal housing acts as a Faraday cage, blocking external electrical noise. 4. **Cable Management:** It organizes the wire bundle exiting the D-Sub connector, ensuring a clean and manageable layout in tight spaces like cockpit panels or server racks. --- ### 4. Common Applications * **Aerospace & Defense:** Used in avionics suites and military ground vehicles. * **Industrial Automation:** High-vibration environments requiring secure locking mechanisms. * **Medical Equipment:** High-reliability diagnostic machines where signal interference must be minimized.