Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number SB4-1 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 SB4-1 It is listed as Lockspring Turnlock Fastener. component manufactured by Dfci Solutions Inc, specifically under CAGE Code 72794. It is also accompanied by the NSN 5325004949128 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5325 Fastening Devices.