M85049/31-20N

Series:	Military, SAE AS85049
Part Status:	Discontinued at Digi-Key
Lead Free Status / RoHS Status:	--
Type:	Backshell, E Nut
Moisture Sensitivity Level (MSL):	--
Cable Opening:	0.914" (23.22mm)
Diameter - Outside:	1.635" (41.53mm)
Shell Size - Insert:	20
Thread Size:	1 3/16-18 UNEF
Cable Exit:	180°
Material:	Aluminum
Plating:	Electroless Nickel
Shielding:	Unshielded
Color:	Silver
Features:	--
Ingress Protection:	--
Includes:	--
Material Flammability Rating:	--
For Use With/Related Products:	MIL-DTL-26482 Series II, MIL-DTL-5015 Series 3400, MIL-DTL-83723 Series I, III

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IntroductionThe M85049/31-20N is an electrical connector used in the military, aerospace, and aviation industries. It is a circularly shaped, multi-pin connector with a backshell housing that prevents ingress of contaminants, shields the pins from EMI, and provides strain relief for the cable. The M85049/31-20N connector is easy to assemble, provides an oil-tight and dusttight seal, and holds up well in high-shock and vibration environments.Application Field of M85049/31-20NThe M85049/31-20N is most commonly used in military, aerospace, and aviation applications. The M85049/31-20N is designed and tested to meet the MIL-C-38999, MIL-C-83723 Series III, and EN3476 military standards. It is often used for applications such as radar, navigation systems, fuel systems, air data systems, and flight control systems. It can also be used for ground-based systems such as antenna systems.Working Principle of M85049/31-20NThe M85049/31-20N is a high-performance interconnect system designed to meet the harsh environmental conditions often found in the military, aerospace, and aviation industries. The backshell housing is designed with a hermetic seal to prevent the ingress of moisture, dust, and other contaminants. This helps to protect the pins from EMI and physical shock as well as providing a measure of strain relief for the cable.The contact pins are made of a high-performance material designed to provide high reliability and a long cycle life. The pins feature a multi-slotted contact system that helps to ensure a secure connection in high vibration environments. The contact area of the pins is also treated with a special coating to help improve conductivity and reduce corrosion.The backshell housing is designed to be easy to install. The integrated mounting flanges provide a secure and reliable installation every time. The backshell also features a unique locking mechanism that helps to ensure a secure connection and prevents accidental loosening of the connection. The backshell housing also includes a shielded cable strain relief boot. This helps to protect the cables from flexing and abrasion during normal operation. ConclusionThe M85049/31-20N is a high-performance electrical connector designed for use in military, aerospace, and aviation applications. The backshell housing provides improved EMI shielding and a hermetic seal for protection in harsh environmental conditions. The contact pins are made of a high-performance material and feature a multi-slotted contact system to ensure a secure and reliable connection. The backshell is easy to install and features a unique locking mechanism and shielded strain relief boot. The M85049/31-20N is a reliable and durable connector that can handle the harshest operating conditions.

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