The 208652-1 is a Sealing Cap for use with circular connectors and receptacle. Thermoplastic seal and cap, elastomer sealing gasket with black colour. Metal bead chain cap to flange attachment, nickel bead chain and coupling with steel-plated bead chain and brass-plated coupling bead chain.
UL94V-1 Flammability rating (sealing cap)
Sealing caps are used to protect exposed contacts of unmated receptacles