The D38999/26FC35PN from Deutsch is MIL-DTL-38999 Series III straight plug with 22 contacts. MIL-DTL-38999 Series III connectors are available in wide range of shell materials and finishes with 48, 500, 1000 and 2000 hour salt spray plating exposure. These connectors offer high density contact arrangements in a miniature circular shell and combines high coupling durability. It is designed to withstand the extreme shock, exposure and vibration.

• High reliability, moisture and corrosion resistant
• Outstanding EMI, RFI shielding protection
• 500 mating cycles, high durability versions are available with 1500 mating cycles
• 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 pin contacts with gold plating

The MS27467T21B35S from Amphenol is MIL-DTL-38999 Series I straight plug with 79 contacts. MIL-DTL-38999 Series I connectors are available in a wide range of shell materials and finishes with 48, 500 and 1000 hour salt spray plating exposure. These connectors offer high density contact arrangements in a miniature circular shell and combines high coupling durability. It has an improved sealing around each contact to prevent electrolytic erosion. These connectors are available in 9 shell size from 9 to 25 and are designed to withstand extreme shock, exposure and vibration.

• High reliability, moisture and corrosion resistant
• Outstanding EMI, RFI shielding protection (100MHz to 10GHz at attenuation of 50dB)
• 500 mating cycles, IP67 environmental protection
• Operates at extreme temperature range of -65°C to +200°C
• Minimum insulation resistance is 5000Mohm
• Scoop proof to eliminate the possibility of contact damage
• Quick mating, three-point bayonet coupling and 5 key/keyway mating
• Self locking connector system, breakaway lanyard release style
• Aluminium alloy body material with olive drab chromate over cadmium plating
• Copper alloy crimp socket contacts with gold plating