Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 0648 500 found under Screw Cap Socket He by K And L Microwave Inc. The National Stock Number assigned to this part is 5305013030178, 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 0648 500.