The part number **570-059NF05LL** refers to a high-performance electrical connector backshell (specifically a protective cover/adapter for a circular connector) manufactured by **Glenair**. --- ### 1. Component Overview This component belongs to the **Series 570** family, which are "In-Line" or "Piggyback" adapters designed for EMI/RFI shielding and environmental protection of electrical connections. ### 2. Part Number Breakdown To understand the technical specifications, we must decode the alphanumeric string: | Segment | Value | Description | | :--- | :--- | :--- | | **Series** | 570 | EMI/RFI Shield Sock Assembly | | **Dash No.** | 059 | Specific internal geometry and sizing profile | | **Material/Finish** | NF | Aluminum / Cadmium Olive Drab over Electroless Nickel | | **Shell Size** | 05 | Corresponds to the diameter/fit for the mating connector | | **Length Code** | LL | Specific length or lead-wire configuration | --- ### 3. Key Technical Features * **EMI/RFI Shielding:** Includes a "Shield Sock" (braided wire) that ensures 360° electrical continuity to prevent electromagnetic interference. * **Material:** Constructed from high-strength aluminum alloy for durability. * **Finish (NF):** The Cadmium Olive Drab finish provides 500+ hours of salt spray resistance, making it suitable for harsh military and aerospace environments. * **Strain Relief:** Provides mechanical support to the cable/wires to prevent damage from vibration or tension. ### 4. Typical Applications These parts are rarely found in consumer electronics; they are specialized for: 1. **Aerospace:** Avionics wiring harnesses. 2. **Military:** Ground vehicles and tactical communication gear. 3. **Industrial:** Heavy-duty sensors and robotic cabling requiring high shielding. --- ### 5. Summary Table | Attribute | Specification | | :--- | :--- | | **Manufacturer** | Glenair | | **Component Type** | Connector Backshell / Shield Sock | | **Environmental Rating** | Corrosion Resistant (Salt Spray) | | **Conductivity** | High (for EMI grounding) |