The Amphenol MS3126F18-32S (PT06SE18-32S) is a MIL-DTL-26482 Series I circular connector designed as a straight plug with bayonet coupling and crimp termination. This 32-position, size 18 connector delivers high-reliability performance in aerospace, defense, industrial, and automotive applications where environmental sealing and rapid mating are critical. The socket-contact design accommodates 24 to 16 AWG wire with individual wire sealing capability and IP67 environmental protection.
Technical Specifications
Electrical Performance
• Maximum voltage: 250 V DC; 600 V AC (RMS) at sea level; 1,000 V AC (RMS) at sea level
• Maximum current: 10 A
• Contact resistance: 5,000 MΩ at 25°C
• Test current: 7.5 A DC/AC (RMS)
Physical Characteristics
• Shell material: Aluminum alloy with olive drab chromate over cadmium plating (standard)
• Contact material: Copper alloy
• Insert material: Neoprene elastomer
• Overall length: 2.528 in. (max.)
• Overall diameter: 1.469 in. (max.)
• Operating temperature: -55°C to +125°C
Interface & Termination
• Contact size: Size 20 for 24 to 16 AWG wire
• Termination method: Crimp
• Sealing: Grommet seal with individual wire sealing; IP67 rated
• Shielding: Unshielded
– Key Features
• Bayonet coupling mechanism for secure, quick disconnect
• MIL-DTL-26482 Series I compliance ensures cross-compatibility with standard military circular connectors
• Environmental sealing via grommet and clamp design
• 32-contact capacity in compact size 18 shell
• Optional plating: black or green zinc cobalt, black zinc (RoHS), zinc nickel, or electroless nickel
– Typical Applications
• Aerospace and defense systems
• Radar and communication systems
• Industrial automation
• Automotive systems (engine control, transmission)
• Mass transit platforms
• Instrumentation
– Compatibility & Integration
Fully intermateable and intermountable with all MIL-DTL-26482 Series I connectors and commercial derivatives, including Souriau by Eaton 851 series equivalents.


















