Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number M 4 N CAT A found under Ink Marking Stencil by Henkel Loctite Corp. The National Stock Number assigned to this part is 7510011423104, 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 M 4 N CAT A.