Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HL18122 PIECE 342 found under Gasket by Curtiss Wright Electro Mechanical Corporation Div Steam And Air Solutions. The National Stock Number assigned to this part is 5330012090532, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like HL18122 PIECE 342.