The Hirose LF10WBR-C is a waterproof cap (cover) for the LF series circular connectors, sized for Shell Size 10 receptacles. Cast in a zinc alloy with a silver finish, it seals the receptacle face when unmated — keeps debris and moisture out of the contact cavity.
This cap is designed for use with LF Series Receptacles. The Shell Size 10 matches the receptacle body diameter; the waterproof feature keeps the connector internals dry when the plug is off. No O-ring to replace — the seal is built into the cap shell.
Construction that survives the panel
Zinc alloy body with a silver finish. That's not a cosmetic choice — the metal shell takes the abuse of repeated mating and unmating, and the silver colour helps spot a missing cap on a dark panel. Bag packaging, one cap per bag.