Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PS4C9CPL01BK found under Screw Assembled Was by Dupree Inc. The National Stock Number assigned to this part is 5305014599048, and the Federal Supply Class is 5305 Screws. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PS4C9CPL01BK.