Using the Request for Quote (RFQ) form provided on this page, you can request competitive procurement options on part number H-643-B-10-T 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 H-643-B-10-T It is listed as Block Tackle. component manufactured by Crosby Group Inc, specifically under CAGE Code 75535. It is also accompanied by the NSN 3940012796627 for ease of organization, the first digits of the NSN indicating that the part belongs to FSC 3940 Blocks Tackle Rigging and Slings.