Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BACW10BN72AP found under Washer Flat by Mamco Mfg Co Inc. The National Stock Number assigned to this part is 5310016077812, 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 BACW10BN72AP.