The part number **507-059N04GR** refers to a high-performance D-Subminiature connector, specifically part of the **Glenair 507 series** (Micro-D Backshells). This component is designed for EMI/RFI shielding and strain relief in high-reliability aerospace or industrial applications. --- ### Technical Specifications Breakdown The following table breaks down the nomenclature of the part number based on standard Glenair coding: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | 507 | Micro-D EMI/RFI Backshell (Qwik-Ty) | | **Shell Size** | 059 | Compatible with 51-contact Micro-D connectors | | **Entry Style** | N | Non-environmental (Standard) | | **Finish** | 04 | Electroless Nickel (High conductivity/Corrosion resistance) | | **Hardware** | GR | Jackscrew, Hex Head, Rotatable | --- ### Key Features and Functionality 1. **EMI/RFI Protection**: The backshell is constructed from aluminum alloy and finished with electroless nickel. This provides a low-impedance path to ground, protecting sensitive signals from electromagnetic interference. 2. **Strain Relief**: The "Qwik-Ty" design allows for the use of plastic or metal cable ties to secure the wire bundle, preventing tension on the individual solder or crimp joints. 3. **Low Profile**: Micro-D components are significantly smaller than standard D-Sub connectors, making them ideal for weight-sensitive applications like satellites and avionics. 4. **Hardware (GR)**: The "GR" designation indicates rotatable jackscrews, which allow the connector to be mated and secured manually or with a hex tool even in tight spaces. --- ### Comparison with Alternative Finishes If you are considering this part for specific environments, the finish code (`04`) is critical: | Finish Code | Material/Finish | Best Use Case | | :--- | :--- | :--- | | **01** | Cadmium / Olive Drab | Military/Tactical (Highest corrosion resistance) | | **04** | Electroless Nickel | Space/Laboratory (Low outgassing, high conductivity) | | **06** | Black Anodize | Non-conductive/Aesthetic | --- ### Installation Example When integrating this backshell, the process generally follows this logic: ```bash 1. Assemble Micro-D connector (51 contact). 2. Install backshell halves over the wired connector. 3. Tighten mounting screws to the connector flange. 4. Use a cable tie to secure the wire harness to the Qwik-Ty arm. ```