The D38999/26FE26SN from Amphenol Aerospace is MIL-DTL-38999 Series III straight plug with 26 contacts. Amphenol MIL-DTL-38999, Series III circular connector have high reliability and increased versatility. It is designed to withstand harshest environments such as extreme shock, exposure and vibration.

• Moisture and corrosion resistant
• 500 mating cycles, high durability versions are available with 1500 mating cycles
• 48hour salt spray resistance
• Operates at extreme temperature range of -65°C to +200°C
• Minimum insulation resistance is 5000Mohm (under 500VDC)
• Scoop proof to eliminate the possibility of contact damage
• IP67 environmental protection
• Self locking connector system, triple start threaded coupling
• Aluminium alloy body material with electroless nickel plating
• Copper alloy crimp socket contacts with gold plating

The 2M801-007-16M5-3SA from Amphenol is 2M series, MIL-DTL-38999 series equivalent straight plug with 3 contacts. The 2M series micro-miniature circular connectors can withstand harsh environment conditions. These quick mating connectors have well-proven electrical capability to withstand extreme shock, exposure and vibration. They are designed for interconnect applications requiring high performance and reduced size and weight. These smaller, high density, light weight connectors far exceed the competition in quality and performance levels. The 2M series are superior and versatile connectors designed and tested to mil-spec standards, comparable to MIL-DTL-38999.

• More rugged keys and threads for faster mating, superior anti decoupling
• Polyphenylene sulphide (PPS) insert and fluorosilicone rubber grommet, seal
• Insulation resistance is 5000Mohm
• 2000 mating cycles for unmated connectors
• Dual-start ACME thread coupling system
• Operating temperature range from -65°C to +150°C
• Salt spray exposure of 48hour
• Aluminium alloy body material with electroless nickel plating
• Copper alloy crimp socket contacts with gold plating