Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WW22X89 found under Filter Drier Refrigerant by Trane Div American Standard Inc. The National Stock Number assigned to this part is 4130004885442, and the Federal Supply Class is 4130 Refrigeration And Air Conditioning Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like WW22X89.