Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HS4773-111-14-16A found under Stud Self Locking by Mcdonnell Douglas Helicopter. The National Stock Number assigned to this part is 5307011775827, and the Federal Supply Class is 5307 Studs. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HS4773-111-14-16A.