Mission-Critical Connection
Qualified aerospace and military connectors providing reliable, environmentally sealed electrical connections.
ISG supplies a broad range of qualified circular, rectangular and RF connectors to MIL-SPEC and ARINC standards for aerospace, defence and high-reliability industrial applications. Our connector portfolio includes MIL-DTL-38999 Series III and IV, MIL-DTL-26482, MIL-DTL-5015, ARINC 600 and M83723 series, covering shell sizes from 9 to 51 with insert arrangements accommodating power, signal, coaxial and fibre optic contacts.
All connectors are procured from approved manufacturers with full first-article test (FAT) documentation, lot acceptance test (LAT) reports and certificate of conformance (CoC) packages. ISG supports connector selection, backshell compatibility assessment and contact crimp tooling specification as part of our technical support service for new wiring harness design projects.
via Selwyn Electronics
Selwyn Electronics joined the Interconnect Solutions Group in 2025, bringing with them over 40 years of experience as a specialist connector and cable assembly supplier. Where the ISG connector range focuses on high-reliability aerospace and military specifications, Selwyn extends our reach into the commercial and industrial connector market — offering a complementary range that covers everyday connectivity requirements alongside specialist applications.
Their waterproof connector range is one of the broadest available from a UK distributor, with over 2,000 variations of IP67 and IP68 rated circular connectors available alongside waterproof versions of RJ45, USB, HDMI and D-sub formats — supplied in Bayonet, Screwlock and Push Lock configurations. This makes Selwyn particularly well suited to applications in marine, outdoor industrial and renewables environments.
Selwyn also operate a cable assembly design and manufacturing service from facilities in both the UK and China, with on-site CAD capability for bespoke designs. Whether a standard harness or a fully custom solution, their engineering team can support from specification through to delivery.
Browse the full Selwyn range at selwyn.co.uk ↗MIL-DTL-38999, MIL-DTL-26482 and EN-series circular connectors for aerospace, defence and industrial applications.
Standard and filtered D-Sub connectors — 9, 15, 25, 37 and 50-way with solder, PCB and crimp contact variants.
MIL-DTL-83527 and COTS rectangular connectors for control panel and enclosure wiring in defence and industrial systems.
Board-mount and wire-to-board connectors in standard pitches for electronics assembly and module interconnection.
Mil-circular, industrial, hermetic and high-speed data connectors including ruggedised USB, HDMI and Ethernet.
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