Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S4287-A found under Roll Bump by Parkinson Edward Mfg Co Inc. The National Stock Number assigned to this part is 3610011412178, and the Federal Supply Class is 3610 Printing Duplicating And Bookbinding Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S4287-A.