Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number AS51990 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 AS51990 It is listed as Ring Lock Serrated. component manufactured by Sae International, specifically under CAGE Code 0U583. It is also accompanied by the NSN 5365005436932 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5365 Bushings Rings Shims and Spacers.