Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HS5773DC03NB found under Clamp Loop by Mcdonnell Douglas Helicopter. The National Stock Number assigned to this part is 5340014406019, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HS5773DC03NB.