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.

Based on the image, this appears to be a Miniature Panel Mount Momentary Push Button Switch (PBS-110/PBS-11A Type) with solder terminals. 5 Mini Push Button Switch – Full Specification Parameter Specification Product Type Miniature Push Button Switch Model PBS-110 / PBS-11A (Typical) Switch Function Momentary (OFF)-(ON) Contact Configuration SPST-NO Actuator Color Red Mounting Type Panel Mount Terminal Type Solder Lug Mounting Hole Diameter 7 mm Contact Rating 1A @ 250VAC Contact Resistance ≤ 50mΩ Insulation Resistance ≥ 100MΩ @ 500VDC Dielectric Strength 1000VAC / 1 Minute Operating Temperature -25°C to +85°C Mechanical Life 50,000 Cycles (Typical) Electrical Life 10,000 Cycles (Typical) Housing Material Metal & Thermoplastic Contact Material Silver-Plated Brass Mechanical Dimensions (Typical) Dimension Value Button Diameter 6 mm Mounting Hole 7 mm Thread Diameter M7 × 0.75 Thread Length 8 mm Overall Length 25 mm Body Diameter 8 mm Terminal Configuration Button ● │ ┌─────────┐ │ Switch │ └─────────┘ │ │ 1 2 Operation State Connection Released Open Circuit Pressed Closed Circuit Features Compact panel-mount design Nickel-plated threaded metal bushing Reliable momentary operation Easy solder connection Long mechanical life Suitable for low-current control circuits Applications Electronic Instruments DIY Projects Control Panels Test Equipment Audio Devices Power Control Circuits Industrial Electronics Hobby Electronics Typical Electrical Ratings 1A @ 250VAC 3A @ 125VAC 36VDC Maximum Switching Voltage 50mΩ Maximum Contact Resistance If you can provide the diameter of the mounting thread (7 mm, 8 mm, 10 mm, etc.) or a clearer side view, I can identify the exact model and provide more precise dimensions. I prefer this response ChatGPT Response 2 The component shown is a Miniature Panel-Mount Momentary Push Button Switch (commonly 8 mm–12 mm mounting size, SPST-NO type). Since no part number is visible, the specifications below are typical for this style. 4 Mini Push Button Switch – Full Specification Parameter Specification Product Type Miniature Push Button Switch Actuator Color Red Mounting Type Panel Mount Operation Momentary (Push ON, Release OFF) Contact Configuration SPST-NO (Normally Open) Number of Terminals 2 Terminal Type Solder Lug Mounting Hole Diameter 8 mm (Typical) Rated Voltage 125VAC / 250VAC Rated Current 1A – 3A Contact Resistance ≤ 50mΩ Insulation Resistance ≥ 100MΩ @ 500VDC Dielectric Strength 1000VAC for 1 Minute Electrical Life ≥ 10,000 Operations Mechanical Life ≥ 50,000 Operations Operating Temperature -20°C to +85°C Contact Material Silver-Plated Brass Housing Material Metal Body with Plastic Actuator Mechanical Dimensions (Typical) Dimension Value Mounting Hole 8 mm Button Diameter 7–10 mm Thread Diameter M8 × 0.75 Thread Length 6–8 mm Overall Length 25–30 mm Terminal Length 4–6 mm Pin Configuration Push Button ┌───────────┐ │ ● │ └───────────┘ | | T1 T2 Contact Operation State Connection Released Open Circuit Pressed T1 Connected to T2 Features Compact panel-mount design Metal threaded body Red actuator cap Low contact resistance Long mechanical life Easy solder-terminal connection Applications Electronic Equipment Control Panels Test Instruments DIY Projects Audio Equipment Industrial Controls Power Switching Circuits Signal Triggering Applications Typical Size: 8 mm panel-mount momentary push button switch with red cap and 2 solder terminals. If you can provide the mounting hole size (8 mm, 10 mm, or 12 mm) or any marking on the body, I can give more exact dimensions and ratings. I prefer this response

Based on the image, this is a 2-Pin Pluggable COMBICON (Male + Female) PCB Terminal Block Connector, commonly used for removable wire-to-board connections in industrial electronics. 4 COMBICON Male Female Connector – Full Specification Parameter Specification Product Name COMBICON Pluggable Terminal Block Type Male + Female Plug-in Connector Number of Poles 2 Pin Pitch 5.08 mm (Typical) Connection Method Screw Clamp Mounting Type PCB Through-Hole Mating Type Plug & Socket Rated Voltage 300V AC Rated Current 10A – 15A Wire Size 28–12 AWG (0.2–2.5 mm²) Contact Material Brass Contact Plating Tin Plated Insulator Material PA66 Nylon Flame Class UL94V-0 Insulation Resistance ≥ 5000 MΩ Withstand Voltage 2000V AC / 1 Minute Operating Temperature -40°C to +105°C Color Green Female Plug Dimensions (Typical) Parameter Value Length 10.16 mm Width 15.0 mm Height 18.0 mm Pitch 5.08 mm Male PCB Header Dimensions (Typical) Parameter Value Length 10.16 mm Width 8.5 mm Height Above PCB 8–10 mm Pin Diameter 1.0 mm Pitch 5.08 mm Pin Configuration Female Plug ┌─────────┐ │ 1 2 │ └─────────┘ Male Header ┌─────────┐ │ ● ● │ └─────────┘ 1 2 Features Removable plug-and-socket design Secure screw-clamp wire termination Easy maintenance and field replacement Polarized housing prevents incorrect insertion High insulation and vibration resistance Suitable for industrial and power applications Applications PLC Systems Industrial Control Panels SMPS Power Supplies Motor Controllers Automation Equipment Instrumentation Systems Security Systems LED Drivers Communication Equipment PCB Footprint (Typical) Parameter Value Pin Pitch 5.08 mm Hole Diameter 1.3 – 1.5 mm Recommended PCB Thickness 1.6 mm Common Names: COMBICON Connector, Pluggable Terminal Block, Euroblock Connector, Phoenix-Type Connector, 2-Pin Plug-In Terminal Block (5.08 mm Pitch).