Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SSW0051 found under Wallboard Gypsum by Federal Specifications. The National Stock Number assigned to this part is 5640000677967, and the Federal Supply Class is 5640 Wallboard Building Paper And Thermal Insulation Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SSW0051.