Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 534 370200 51 0242B 0542B found under Nut Plain Extended by Itw Shakeproof Automotive Products. The National Stock Number assigned to this part is 5310012828113, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 534 370200 51 0242B 0542B.