Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EH10-28A found under Standoff Threaded S by Secs Inc. The National Stock Number assigned to this part is 5340015279635, 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 EH10-28A.