Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 9505B-A-0256-10A found under Standoff Threaded Spacing by New Haven Mfg Corp. The National Stock Number assigned to this part is 5340011612155, and the Federal Supply Class is 5340 Hardware Commercial. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 9505B-A-0256-10A.