Description
Protect unmated circular connectors from environmental hazards, physical damage, dust, and moisture with the D38999/32F19R receptacle dust cap. Built to strict MIL-DTL-38999 Series III standards, this heavy-duty protective cover ensures reliable mating retention and signal integrity for critical electrical interconnects.
Featuring an aluminum shell with an electroless nickel plating (Class F), the D38999/32F19R provides superior conductivity, high corrosion resistance, and effective EMI/RFI shielding. The integrated wire rope lanyard with a Ring terminal ensures the cap stays securely tethered to your panel assembly, preventing loss during maintenance or field operations.
Key Features & Benefits
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Military Standard Compliance: Fully qualified to MIL-DTL-38999 Series III specifications for harsh environment reliability.
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Class F Electroless Nickel Finish: Delivers excellent conductivity, durable wear resistance, and high corrosion protection across extreme temperature ranges (-65°C to +200°C).
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Secure Attachment Lanyard: Fitted with a high-tensile wire rope lanyard and a Ring end link for easy mounting to panel cutouts or enclosure hardware.
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Complete Environmental Sealing: Prevents ingress of dirt, moisture, fluid contaminants, and debris into exposed receptacle contacts.
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Rugged Aluminum Construction: Lightweight yet durable body engineered to withstand severe vibration, thermal shock, and mechanical wear.
Technical Specifications
| Specification | Details |
| Military Part Number | D38999/32F19R |
| Connector Series | MIL-DTL-38999 Series III |
| Accessory Type | Receptacle Protective Cover / Dust Cap |
| Shell Size | Size 19 |
| Class Finish | Class F (Electroless Nickel Plating) |
| Material | High-grade Aluminum Alloy |
| Lanyard Style | Wire Rope Lanyard |
| Lanyard Attachment | Ring (Eyelet) |
| Operating Temperature | -65°C to +200°C |
Applications
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Aerospace and Avionics Systems
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Military Ground Vehicles and Tactical Communications
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Industrial Instrumentation and Automation Equipment
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Marine and Heavy Machinery Interconnects
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Unmanned Aerial Vehicles (UAVs) and Defense Electronics






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