Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number D1231-255-1 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 D1231-255-1 It is listed as Nut Tube Coupling. component manufactured by Wartsila Water Systems Limited, specifically under CAGE Code K0359. It is also accompanied by the NSN 4730121871125 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 4730 Hose Pipe Tube Lubrication and Railing Fittings.