MS27508 Military Connectors Configurations and Specifications
PT02A-14-18S-ND Circular Connector Overview
The PT02A-14-18S-ND is a circular connector designed for reliable electrical connections in demanding industrial and military-style applications. Its 18-pin configuration supports mixed signal and power transmission, making it suitable for complex electronic systems where stable connectivity is essential.
Constructed with a durable aluminum alloy housing and gold-plated brass contacts, this connector is built to maintain consistent performance under vibration, temperature variation, and moisture exposure. The solder termination method provides a secure, permanent connection for long-term field service.
Key Selection Considerations
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Pin Count and Layout: The 18-position arrangement offers flexibility for multi-circuit control and data lines, but confirm your required pinout against the connector's contact arrangement before ordering.
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Mating Compatibility: This is a socket (female) connector. Verify the corresponding plug part number and shell size to ensure proper mating with your existing cable assembly.
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Termination Method: Solder cup contacts require careful soldering during installation. Ensure your assembly process can accommodate this termination style.
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Environmental Fit: The aluminum housing provides mechanical robustness, but confirm the specific IP rating and temperature range for your installation environment.
Application Scope and Boundaries
This connector is commonly specified for industrial automation controls, aerospace avionics, military communication racks, and electronic control units where dependable connectivity is critical. It is well-suited for panel or chassis mounting in equipment that experiences mechanical stress.
However, it is not recommended for applications requiring frequent mating/unmating cycles under load, nor for submersion in liquids unless the complete assembly's IP rating is verified. For high-vibration environments, consider additional strain relief and locking mechanisms.
Installation and Configuration Guidance
Proper installation requires preparing the cable conductors to the correct strip length for solder cups. Ensure the backshell and strain relief are correctly fitted to protect the solder joints from mechanical stress. When integrating this connector, verify the shell size and insert arrangement against your panel cutout and mating connector.
Inquiry Checklist for Accurate Quoting
To receive an accurate quotation and ensure compatibility, please provide the following details with your inquiry:
- Mating connector part number and gender (plug or socket)
- Required pinout or wiring diagram
- Cable outside diameter and conductor size (AWG)
- Electrical load (current and voltage per contact)
- Operating environment (temperature, moisture, vibration levels)
- Order quantity and target delivery date
Related Resources
For broader selection guidance, review our 12G Series Circular Connectors for alternative configurations. For a detailed comparison of shell styles and contact arrangements, see our guide on MS27508 Military Connectors Configurations and Specifications.

Top quality for the price! These PT mil-spec ones fit our equipment perfectly, gold contacts make the connection steady, and they feel really durable. Definitely a good pick for heavy-duty use.Grace_89 2026-02-01
Really impressed with these PT connectors! Easy to install, the bayonet lock is super convenient, and they’ve held up perfectly in our industrial setup for months now. No issues at all, would buy again.Tommy2022 2026-02-01
Super easy to install, bayonet lock is perfect. No issues at all after months of use.NYC_Explorer 2026-02-01
These are the real deal! Tough build, stays connected no matter what, and installs without any hassle. Used them for our field instrumentation, and they’ve been rock solid since day one.TechieMike 2026-02-01