Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number H51129-4 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 H51129-4 It is listed as Nut Self Locking Double Hexagon. component manufactured by Kaynar Microdot Aerospace, specifically under CAGE Code K6405. It is also accompanied by the NSN 5310013925913 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5310 Nuts and Washers.