Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 40-0250 found under by Mas Components And Coatings Llc. The National Stock Number assigned to this part is 5865000544668, and the Federal Supply Class is 5865 Electronic Countermeasures Counter-Countermeasures And Quick Reaction Capability Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 40-0250.