Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 550-1850-309 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 550-1850-309 It is listed as Pin Retaining. component manufactured by L 3 Communications, specifically under CAGE Code 27777. It is also accompanied by the NSN 5315014501099 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5315 Nails Machine Keys and Pins.