Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 377573-3 found under Trigger Pistol Grip by Numberinc. The National Stock Number assigned to this part is 1680009946395, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 377573-3.