Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A02HS050-1 found under Valve Assembly Brak by The Boeing Company. The National Stock Number assigned to this part is 1630007805833, and the Federal Supply Class is 1630 Aircraft Wheel And Brake Systems. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A02HS050-1.