Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 10400-N1A found under Level Assembly by Blue Tee Corp. The National Stock Number assigned to this part is 5210013723130, and the Federal Supply Class is 5210 Measuring Tools Craftsmens. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 10400-N1A.