Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number B13521 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 B13521 It is listed as Spring Mechanical. component manufactured by Ohio Wire Spring Co, specifically under CAGE Code 14682. It is also accompanied by the NSN 5340009288287 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5340 Hardware Commercial.