EMI Protection & Strain Relief

Circular Backshells

Precision machined backshells providing EMI shielding continuity and robust strain relief for circular connectors.

Circular Backshells

Circular Backshells

ISG supplies a comprehensive range of circular connector backshells to AS85049, MIL-DTL-85049, and customer-specific requirements for military and aerospace circular connector interfaces. Our backshell range covers straight, 45°, 90°, and in-line configurations in aluminium alloy, stainless steel, and composite materials, with EMI shielding, environmental sealing, and strain relief provisions for all standard circular connector series.

Products feature 360° EMI braid termination provisions, O-ring face and rear environmental seals, and cable clamp strain relief mechanisms adjustable for cable diameters from 4mm to 50mm. Conductive anodised, electroless nickel, zinc-nickel, and cadmium plating options ensure galvanic compatibility with connector shell materials and environmental protection requirements. Design engineering support is available for non-standard or combined backshell-conduit interface requirements.

  • Compliant with AS85049 and MIL-DTL-85049
  • Straight, 45°, 90°, and in-line configurations
  • Aluminium alloy, stainless steel, and composite materials
  • 360° EMI braid termination provisions
  • O-ring environmental sealing (face and rear)
  • Cable clamp range 4mm to 50mm OD
  • Compatible with MIL-DTL-38999, MIL-DTL-5015, MIL-DTL-26482
  • Conductive anodised, ENP, zinc-nickel, and cadmium plating

Key Capabilities

Cable Clamp Range
4mm – 50mm OD
Material Options
Aluminium Alloy, Stainless Steel, Composite
Configurations
Straight / 45° / 90° / In-line
Key Standards
AS85049 / MIL-DTL-85049

Industries Served

Aerospace 🛡Defence 🛰Space Marine Industrial

Enquire About Circular Backshells

Speak with our technical team about your specific requirements. We support new design programmes, approved vendor qualification, and volume supply agreements.

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