Rugged Radios Military Grade Nexus Replacement Jack TJ-102

The Rugged Radios TJ-102 (NEXUS-TJ102-BLUE) is a military-grade Nexus in-line replacement jack with four conductors, built to the MIL-C-9177 standard for ruggedized commercial and military communication wiring. Its contacts are molded into the plastic body and it is configured for larger-diameter cable, making it the repair part for rebuilding a damaged Nexus connection on racing and off-road comm harnesses.

Specifications

• Type: in-line Nexus jack (TJ-102), 4 conductor
• Standard: MIL-C-9177 (M9177/3-1, U-92A/U)
• Dimensions: 0.828 in wide and tall x 2.312 in long; 0.285 in contact diameter
• Shell: plastic body with molded-in contacts
• Contacts: nickel-plated beryllium copper; pre-tinned solder terminals
• Contact resistance under 0.02 ohm; insulation resistance over 1,000 megohm
• Insertion force 13 lb max; withdrawal force 6-10 lb

This is a wire-in repair component: the terminals are pre-tinned solder terminals, so installation requires soldering the jack onto your cable.

Sold as a single jack.

Frequently Asked Questions

What is the TJ-102 jack used for?

It replaces a damaged 4-conductor Nexus in-line jack on comm harnesses — the standard connection used between racing headsets, helmet kits, and intercom cables.

Does installing it require soldering?

Yes. The TJ-102 has pre-tinned solder terminals and must be soldered onto the cable — it is a repair part, not a plug-in adapter.

Is it really military-grade?

The jack is built to the MIL-C-9177 standard (M9177/3-1, U-92A/U) with nickel-plated beryllium copper contacts, the specification used for ruggedized military communication connectors.