From the image alone, the exact part number cannot be identified with certainty. It appears to be a threaded waterproof protective cap / dust cover with a brass female threaded insert and a tethered sealing ring.
Estimated Specifications
Parameter Specification
Product Type Waterproof Dust Cap / Protective Cover
Body Material Black Thermoplastic (PA66/Nylon or ABS)
Thread Insert Material Brass
Color Black
Thread Type Female Internal Thread
Mounting Style Screw-on
Protection Dust and Splash Protection
Cap Style Tethered Hinged Cover
Operating Temperature -20°C to +85°C (typical)
Application Circular connectors, panel sockets, aviation connectors, power sockets, sensor connectors
Insulation Resistance Not applicable (mechanical accessory)
RoHS Compliance Typically RoHS compliant
Features
Brass threaded insert for durability.
Protective cap prevents dust, moisture, and contaminants.
Flexible tether prevents cap loss.
Knurled outer edge for easy hand tightening.
Suitable for industrial and outdoor equipment.
Typical Dimensions (Approximate)
Since no scale is available, dimensions can only be estimated:
Dimension Approximate Value
Outer Flange Diameter 20–30 mm
Thread Diameter 12–20 mm
Cap Length 15–25 mm
Material Thickness 2–3 mm
If you can provide:
The part number, or
A photo showing the front view with dimensions, or
The connector/socket this cap fits,
I can provide a much more accurate datasheet with exact dimensions and thread specifications.
