Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 664-173 with rapid responses always offered by our staff. To ensure that you locate and procure exactly what you need with ease, we list parts with as much information as we can. For example, part number 664-173 It is listed as Regulator Voltage. component manufactured by Harsco Corp, specifically under CAGE Code 93568. It is also accompanied by the NSN 6110002131038 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 6110 Electrical Control Equipment.