Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 20-22207 found under Leg Semitrailer Retractable Supp by Butler Products Inc. The National Stock Number assigned to this part is 2590011856742, and the Federal Supply Class is 2590 Miscellaneous Vehicular Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 20-22207.