Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4CXXMXPSP found under Screwmachine by Global Supply Llc. The National Stock Number assigned to this part is 5305016819688, 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 4CXXMXPSP.