Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number U250-0075SS found under Washer Spring Tensi by Associated Spring Barnes Group Inc. The National Stock Number assigned to this part is 5310012842999, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like U250-0075SS.