Used on an/sqq-89a v 15 unit 804, system equipment rack, unit 841, 842, 843, 844, data processor, w/ec-200 & 15j unit 804 system equipment rack,. retainer, connection kit this unit is for protection against losening or accidental disconnection of the plug connector. each cord kit consists of: stainless steel retaining clip, nickel plated brass piliars, nickel plated brass nuts, nickel plated beryllium copper crinkle washers.