Description

The D38999/32W21N is a heavy-duty, military-standard metal protective cover built to protect unmated MIL-DTL-38999 Series III circular plug connectors from dust, moisture, salt spray, and physical impact. Engineered for harsh tactical and industrial environments, shell size 21 caps maintain interface integrity, preventing pin damage and contamination when cables are uncoupled.

Key Features & Technical Specifications

• Standard / Spec: Fully compliant with MIL-DTL-38999 Series III specifications (Part Number: D38999/32W21N).

• Shell Size: 21 (fits all standard Series III Size 21 plug connectors).

• Material & Finish: High-strength Aluminum Alloy with Olive Drab Cadmium over Electroless Nickel (Class W) for superior corrosion resistance (500-hour salt spray rated).

• Retention / Lanyard: Fitted with a high-flexibility nylon rope lanyard with ring (N type) to securely tether the cap to your cable assembly.

• Sealing & Shielding: Features a internal sealing gasket for environmental protection (IP67/IP68 when mated) and conductive finish for complete EMI/RFI shielding.

• Coupling: Self-locking, fast-mating tri-start threaded coupling mechanism.

Primary Applications

• Defense & Tactical Communications Systems

• Aerospace, Marine, and Military Avionics

• Heavy Industrial Equipment & Automated Machinery

• Field Deployable Cable Assemblies & Testing Rigs

Why Choose D38999/32W21N?

Leaving circular connectors exposed to ambient dust, moisture, or field debris can compromise signal continuity and lead to costly downtime. The D38999/32W21N protective cap provides a rugged, field-tested seal to ensure your cable harnesses remain clean, intact, and ready for deployment.

Technical Specifications Matrix