Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 251050-003 found under Retainer Semiconductor Device by Watkins Johnson Co. The National Stock Number assigned to this part is 5961011833587, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 251050-003.