Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number P310-B1-50 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 P310-B1-50 It is listed as Circuit Breaker. component manufactured by La Marche Mfg Co, specifically under CAGE Code 92731. It is also accompanied by the NSN 5925011568579 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5925 Circuit Breakers.