Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PCV88 found under Valve Positive Crankcase Ventila by G C S Inc. The National Stock Number assigned to this part is 2990011555006, and the Federal Supply Class is 2990 Miscellaneous Engine Accessories Nonaircraft. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PCV88.