The 121111-0172 is a metal protecting dust cap designed for VG95234 bayonet connectors, specifically configured for receptacles with chain attachment. This protective cap features a 12-pin bayonet gasket assembly with rivet construction and includes terminal link components connected by a chain for secure tethering. The cap is available in shell size 36 with dimensional specifications including a maximum outer diameter (d1) of 65.5 mm, a pin diameter (d2) of 5.5 mm (+0.5 tolerance), a length (l1) of 169 mm (±10 tolerance), and a maximum cap length (l2) of 24.5 mm. These dust caps are commonly used in aerospace, defense, and industrial applications to protect connector receptacles from contamination and environmental exposure during storage and transport, ensuring reliable connections when the connector is deployed.