Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PWA6583 found under Adapter Hoisting by United Technologies Corporation. The National Stock Number assigned to this part is 3940002122324, and the Federal Supply Class is 3940 Blocks Tackle Rigging And Slings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PWA6583.