Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number ST3M690A803818 found under Pin Step Taper Lock by Huck International Inc. The National Stock Number assigned to this part is 5315010044254, and the Federal Supply Class is 5315 Nails Machine Keys And Pins. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like ST3M690A803818.