AMP BACKSHELL (P/N 748676-4) - New Surplus

The 748676-4 is a TE Connectivity AMPLIMITE HD-20 backshell designed for 37-position D-subminiature connectors. This two-piece zinc-alloy backshell provides strain relief and EMI shield termination with a 180° cable exit configuration. It installs on AMPLIMITE HD-20 or compatible 37-pin D-sub connectors using 4-40 jackscrews per assembly instructions.

Commonly used in avionics rack-and-panel I/O wiring harnesses throughout aircraft electrical systems. Verify connector compatibility and proper jackscrew torque before installation.

What is the AMP BACKSHELL (P/N 748676-4)?

The 748676-4 is a TE Connectivity AMPLIMITE HD-20 backshell designed for 37-position D-subminiature connectors. This two-piece zinc-alloy backshell provides strain relief and EMI shield termination with a 180° cable exit configuration.

Is the 748676-4 compatible with my aircraft's avionics suite?

Avionics compatibility depends on your aircraft model and existing installation. The AMP BACKSHELL is available in: New Surplus. We recommend checking your aircraft's wiring diagrams and STC documentation, or contact our avionics team for compatibility assistance.

Does the 748676-4 come with an 8130-3 airworthiness tag?

Availability of an FAA 8130-3 tag depends on the part condition. Overhauled and repaired units typically include 8130-3 documentation. As-removed units may include a removal tag with trace history. Contact us for specific documentation on the condition you need.

Do you offer bench testing for the 748676-4?

We can arrange bench testing through our network of FAA-certified repair stations. Call (904) 998-9101 for testing availability and turnaround times, or submit an RFQ with your specific requirements.