MS27505E17B35P 55-Pin MIL-DTL-38999 Series III Circular Connector

MS27467 Circular Connectors

MS27505E17B35P Circular Connector for Marine, Shipboard and Industrial Control Systems

The MS27505E17B35P is a 55-pin circular plug connector engineered for demanding marine and industrial environments. Its MIL-DTL-38999 Series III design ensures reliable, high-density signal connections in shipboard systems, offshore platforms, and industrial control panels.

Marine-Grade Construction and Environmental Sealing

Constructed with a corrosion-resistant aluminum alloy shell and IP67-rated sealing, the connector withstands salt spray, high humidity, mechanical vibration, and temperature extremes common in marine and offshore applications. The housing material and sealing design are selected to maintain signal integrity in exposed deck and engine room installations.

Typical Shipboard and Industrial Applications

• Bridge Systems: Radar, GPS, navigation electronics
• Engine Room Monitoring: Sensors, generator controls, alarms
• Deck Equipment: Winches, cranes, hatch controls
• Automation Panels: PLCs, distributed I/O, sensor networks
• Communication Networks: Internal ship communications, alarms, control signals

Electrical and Mechanical Performance Highlights

• 55-pin configuration supports multi-signal circuits in a single mating interface
• Bayonet quick-lock coupling ensures secure mating under continuous vibration
• Crimp termination delivers low contact resistance and field-replaceable contacts
• Wide operating temperature range: −65°C to +200°C

Selection Considerations and Mating Compatibility

When specifying the MS27505E17B35P, confirm the mating receptacle series, contact layout, and shell size before ordering. This plug is designed for MIL-DTL-38999 Series III systems; verify that the corresponding socket uses the same keying and pin arrangement to avoid mismating. For applications requiring a different pin count or gender, review the related MS27467 and MS27508 series options.

Suitable and Unsuitable Use Cases

This connector is well suited for fixed and semi-permanent installations where high-density signal routing, vibration resistance, and environmental sealing are required. It is not intended for repeated high-cycle mating applications such as daily field disconnects, nor for power distribution circuits that exceed the rated current of the contact size. Confirm the contact rating and cable range against your specific load before installation.

Information to Include with Your Inquiry

To receive an accurate quotation and mating recommendation, provide the following details:

• Required mating receptacle part number and shell size
• Contact arrangement and pinout diagram
• Cable diameter and conductor insulation type
• Operating environment (temperature, humidity, salt spray exposure)
• Required IP rating and any additional sealing requirements

For related MIL-DTL-38999 options, review the MS27467 Circular Connectors catalog. For higher-density configurations, see the MS27467E23B35P 100-Pin Circular Connector for Radar Systems.