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      • MILITARY CONNECTORS
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      • HEAT SHRINK TUBING
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    • EMI/RFI Shielding
    • HEAT SHRINK TUBING
    • AUDIO CONNECTORS
  • contact us

HERMETIC CONNECTORS

Hermetic MIL-DTL-38999 Series III Connectors

 Elimec USA supplies Hermetic MIL-DTL-38999 Series III connectors engineered for aerospace, defense, industrial, and other high-reliability applications where airtight sealing and dependable electrical performance are essential.

Manufactured to meet MIL-DTL-38999 Series III and EN3645 standards, these hermetic receptacles feature a rugged stainless steel construction, glass-to-metal sealing technology, and a self-locking triple-start ACME threaded coupling for secure, long-lasting connections in harsh environments.

KEY FEATURES

  •   Qualified to MIL-DTL-38999 Series III and EN3645
  • Hermetic glass-to-metal sealed construction
  • Stainless steel shells with passivated or nickel-plated finishes
  • Triple-start ACME threaded self-locking coupling
  • Scoop-proof design for contact protection
  • Available in 9 shell sizes with multiple insert arrangements
  • Operating temperature from -65°C to +200°C
  • Excellent resistance to shock, vibration, corrosion, and EMI
  • Minimum 500 mating cycles
  • Custom configurations available upon request

Typical Applications

TECHNICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS

Hermetic MIL-DTL-38999 connectors are commonly used in:

  

  • Aerospace and avionics
  • Military and defense systems
  • Space applications
  • Radar and communication equipment
  • Industrial automation
  • Vacuum and pressure-sealed systems

TECHNICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS

TECHNICAL SPECIFICATIONS

  • Standards- MIL-DTL-38999 Series III, EN3645
  • Operating Temperature- -65°C to +200°C
  • Leakage Rate- < 1 × 10⁻⁷  atm·cm³/s    
  • Durability- 500 mating cycles minimum
  • Contact Sizes- 22D, 20, 16, 12, 8
  • Current Rating- 3 A to 40 A

Hermetic MIL-DTL-38999 Series III Connectors- data sheets

Hermetic MIL-DTL-38999 Series III Connectors (pdf)

Download

Frequently Asked Questions

A hermetic connector provides an airtight electrical interface using glass-to-metal sealing technology, preventing gas or moisture leakage in critical environments.


Hermetic connectors are widely used in aerospace, defense, space, industrial automation, medical equipment, and vacuum systems where reliability is essential.


 They offer high mechanical strength, excellent vibration resistance, EMI shielding, secure self-locking coupling, and outstanding environmental protection.


These hermetic connectors operate from -65°C to +200°C, making them suitable for extreme environmental conditions.


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