Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number FDS4020T150P found under Washer Spring Tensi by W And E Platt Pty Ltd. The National Stock Number assigned to this part is 5310121564959, 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 FDS4020T150P.