Keep your high-performance circular connectors fully operational with the D38999/33Z23N Protective Dust Cap. Specifically manufactured for MIL-DTL-38999 Series III jam nut receptacles (Shell Size 23), this military-grade cover prevents dust, moisture, salt spray, and physical impact from compromising un-mated connector pins.

Built with a high-strength aluminum alloy shell and coated in a non-reflective Black Zinc Nickel (Z plating), this cap offers exceptional corrosion resistance while meeting strict environmental and electrical grounding standards. The integrated stainless steel wire rope lanyard (Style N) ensures the protective cap stays secured near your equipment when disconnected.

Key Features:

• Military Specification Compliance: Full adherence to MIL-DTL-38999 Series III standards.

• Rugged Construction: Machined aluminum alloy housing designed for defense, aerospace, and industrial applications.

• Black Zinc Nickel Finish (Plating Z): Delivers superior conductive protection and high corrosion resistance (RoHS compliant alternative to Cadmium).

• Shell Size 23 Fit: Precision-engineered for jam nut mounting receptacles.

• Lanyard Retention (Attachment Type N): Durable wire rope attachment prevents accidental loss in high-vibration environments.

• Environmental Sealing: Internal gasket seals out dust, dirt, moisture, and chemical exposure.

Technical Specifications:

• Part Number: D38999/33Z23N

• Connector Series: MIL-DTL-38999 Series III

• Component Type: Protective Cap for Receptacles

• Shell Size: 23

• Plating Material: Black Zinc Nickel (RoHS Compliant)

• Attachment Style: Wire Rope Lanyard (Type N)

• Operating Temperature: -65°C to +175°C

Applications: Ideal for aerospace avionics, military ground vehicles, marine defense systems, industrial automation, and rugged field communications equipment.