Versatile Connectivity

Creating Extra Space for Enhanced Functionality

Series 38  Extender Backshell

Extender Backshells are specialized connector accessories designed to provide additional space between a connector and its strain relief. These components are crucial for applications requiring extra room for service loops, resistors, re-termination, or other wiring needs. Key features include:

Extended Length: Typically 1.50 inches, with options for custom lengths in 0.25-inch increments.

Connector Replication: The accessory threads and teeth of the original connector are replicated on the back end of the extender, ensuring compatibility and proper mating.

Versatility: Available for various connector interfaces, including MIL-DTL-38999, MIL-DTL-5015, and others.

Multiple Options: Offered in straight configurations with various coupling ring options such as standard rotatable, direct coupling, self-locking, and safety wire holes.

Material Choices: Manufactured in materials like aluminum or stainless steel with different finishes for environmental protection.

Customization: Can be ordered with specific shell sizes, lengths, and coupling ring options to meet exact application requirements.

These extender backshells are ideal for applications where additional wiring space is needed without compromising the connector’s original mating interface or environmental sealing properties. They are commonly used in aerospace, defense, and other high-performance electronic systems where space constraints and reliability are critical factors.

Series 38 Extender Backshells provide extra room behind a connector and in front of a strain relief to allow for service loops, resistors, re-termination or other needs. The accessory threads and teeth of the connector are replicated on the back end of the Extender Backshell.

Notes:

1. All dimensions are in Inches 2. See Section G for torque information

3. Because the rear grommet on some connectors is crucial to environmental sealing, the environmental suitability of this series must be determined by the user.

4. Length on straight backshells will be 1.50” unless otherwise specified in part number

Materials

Component Material Descriptions


Compaero employs traceable methods when sourcing and using material. All manufacturer certifications are kept on file and are available upon request. For more information please contact Compaero.

Extender Backshells Component Chart

Connector Interface Codes

Standard Circular Interfaces


Compaero manufacturers connector accessories for most circular connector series. This section provides information on the more common interfaces. If the desired interface is not shown please contact Compaero. Table 2 contains Threads and dimensions of commonly used connector series. If the required dimensions are not shown please contact Compaero.

Extender Backshell Connector Interface Chart 2
Extender Backshell Connector Interface Chart 1

Material

Plating Options


All Compaero backshells are available in a wide selection of material and plating combinations, from heavy duty marine applications to lightweight aerospace solutions, there is an option for almost any situation.

Material Plating Chart

Coupling Ring

Options


Extender Backshell Coupling Options

Recommended

Torque Values


The below figures are provided to support operators already trained in the installation of heat shrinkable products and harnessing components. They identify the recommended torque values to be used when installing adapters onto circular electrical connectors, to consistently tighten adapters in a controlled manner. For any questions or further instructions please contact us and we will be happy to assist you.

Extender Backshell Torque Chart
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