Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 7510-01-131-9230 found under Lead Pencil Graphit by National Industries For The Blind. The National Stock Number assigned to this part is 7510011319230, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 7510-01-131-9230.