Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number 0001-0028 ITEM 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 0001-0028 ITEM 4 It is listed as Ring Retaining. component manufactured by Rockwell Collins Electromechanic, specifically under CAGE Code 86831. It is also accompanied by the NSN 5325013105930 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 5325 Fastening Devices.