Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SP248J found under Valve Vent by Erie Engineered Products Inc. The National Stock Number assigned to this part is 4820008174985, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SP248J.