Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST7M256-1 found under Filter Fluid by Monogram Aerospace Fasteners Inc. The National Stock Number assigned to this part is 1660002787277, and the Federal Supply Class is 1660 Aircraft Air Conditioning Heating And Pressurizing Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ST7M256-1.