Connector Selection Wizard

Find Your Connector

Tell us your signals. We'll recommend the right connector and generate the complete BOM: backshell, boot, contacts, and grommet.

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Signal-First Selection

Start with what you know: signal count, wire gauges, and current requirements. We handle the insert arrangement math.

Complete Stack Output

Get the full BOM: connector, backshell, heat shrink boot, contacts, and grommet. Never forget strain relief again.

Built-in Checks

We check current ratings against contact sizes and compare cable bundle diameter against backshell entry. Catch mistakes before ordering.

Stop Guessing, Start Engineering

Every wire harness engineer has been there: you know you need 15 signals at 22 AWG and 3 power lines at 16 AWG, but which D38999 insert arrangement fits? Shell size 17? 19? And what about the backshell—will your cable bundle actually fit through it?

Traditionally, answering these questions means opening the MIL-STD-1560 PDF, cross-referencing insert tables, calculating wire bundle diameter, then checking backshell entry sizes in a separate datasheet. For one connector. Now multiply that by every connector in your harness.

What This Tool Does

Enter your signals above—name them if you want, specify gauges and currents. Select your environment (aerospace, industrial, indoor). Hit "Find Connectors."

In seconds, you'll see ranked recommendations with fit scores, spare contact counts, and complete accessory stacks. Click "View Stack" to see the exact part numbers for backshells, boots, contacts, and grommets—all validated against your cable bundle diameter.

Supported Families

  • MIL-DTL-38999 Series III — Aerospace circular connectors (165+ insert arrangements)
  • MIL-DTL-24308 — D-Sub connectors (9 to 50 pin)
  • M12 Industrial — Sensor connectors (A/D/X-code)
Free Connector Selector - D38999 & M24308 | WireIt