Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1620-001 found under Screw Machine by Parker Hannifin Corporation. The National Stock Number assigned to this part is 5305010541872, 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 1620-001.