Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SMS-3101B found under Cylinder Head Compressor by Salem Manufacturing And Sales Inc. The National Stock Number assigned to this part is 4310002184011, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SMS-3101B.