NSN 5945-00-173-0978 relay (455-0522-002) by Leach. Package: hermetically sealed can with 4 x spring loaded fixing screws. coil rating: 115V @ 400Hz (*) contacts rating: 4 PDT 10 Amp 28Vdc 115/200V-400Hz (*) * as marked on can. Status: NOS (New Old Stock) ex USAF No packaging. RoHS compliant: N/A