The C37-428 Protective Cap is engineered to protect unmated MIL-DTL-38999 Series III plug connectors, providing a secure barrier against environmental contaminants and mechanical damage. Built as part of EMCA’s C3 Series, it safeguards the exposed mating face—including the insulator, contacts and coupling interface—when equipment is disconnected.
The cap attaches quickly and securely using its internal retention geometry, requiring no tools or external hardware. This makes it ideal for field service, workshop maintenance and equipment transport scenarios where connectors must be protected efficiently and reliably.
Constructed from high-quality materials with optional corrosion-resistant plating, the C37-428 offers long-term durability in harsh aerospace, defence, transportation and industrial environments. By preventing dust ingress, moisture exposure and accidental impact, it helps maintain the operational readiness and service life of MIL-DTL-38999 Series III plug connectors.
