What is a backshell on a connector?

What is a backshell on a connector?

A backshell is a mechanical device threaded into the rear of an electrical connector. The more popular backshells are strain relief, cable clamps and adaptors.

Why are backshells used?

A backshell is an accessory that mounts to the rear threads of a connector to enhance its operational characteristics. The primary function of a backshell is to provide strain relief, which minimizes stress from the cable, on the junction where the wires terminate to the contacts.

What is a cable shell?

A Backshell is the rear portion of a connector, which is normally a separate section from the connector head, used to secure the cable via a clamp to the end of the connector. Also called a Hood. Connector Back Shell.

What is MIL type?

Military (MIL-SPEC) connectors are shell-type connectors which are built in accordance with military specifications. Their design takes into account the need to protect the connection from environmental factors, allowing them to be used in military and aerospace applications.

How do I know what size my connector shell is?

Shell size is determined by dividing the shell’s diameter by . 0625 (the increment between sizes). For example, a size 8 shell has a diameter of . 50 and 8 X .

What is the purpose of mil-Specs?

A United States defense standard, often called a military standard, “MIL-STD”, “MIL-SPEC”, or (informally) “MilSpecs”, is used to help achieve standardization objectives by the U.S. Department of Defense.

What does mil a stand for?


Acronym Definition
MIL Military
MIL Mother-In-Law
MIL One Thousandth of An Inch
MIL Million

What does connector shell size mean?

Both the connector and accessory manufacturers use the term “shell size” to designate the size of their respective products. Connectors which utilize threads to attach backshells, are usually equal to or within . 062 of the connector shell size.

What is connector contact size?

The size of the contact is defined by the connector cavity and a relationship with the cable gauge (or AWG). The cable gauge defines the nominal current that the contact can accept. The contact size is identidied by a number.

How do connector blocks work?

Terminal blocks are connectors that terminate a single wire and connect it to a circuit or other system. Terminal blocks come in a range of shapes, sizes and ratings, but always terminate a single wire (single pole) and are never multi-pole.

What is a connect connector backshell?

Connector backshells are essential accessories that are threaded onto the rear of a circular or rectangular connector shell to provide additional support and protection and create a more polished aesthetic look.

Do I need to protect my connector Backshells?

Certain connector backshells, such as circular banding or crimp-ring styles, will require additional external protection such as heat shrink boots.

Who makes Backshells for Amphenol connectors?

Glenair makes backshells for every connector manufacturer’s product, including Amphenol, Deutsch, Cannon, and others. Backshells and other connector accessories for the broad range of circular mil-spec and commercial-grade connectors including MIL-DTL-38999, MIL-DTL-5015, MIL-DTL-28840, and others.

What other backshell accessories do we offer?

We also offer a range of backshell accessories, including strain reliefs, protective covers, extender backshells, pipe thread adapters, termination systems, shorting caps and even electromagnetic shielding options. If you need help specifying the right backshell for your application, contact us today and we’ll find the perfect one for you.