Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PL 423383-A ITEM 3 found under Muffler Exhaust Intake by Zeks Air Drier Corp. The National Stock Number assigned to this part is 2990014070974, 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 PL 423383-A ITEM 3.