Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number T1 AYYB BN VT ABN 014 found under Diaphragm Pump Special Shaped by Wilden Pump And Engineering Co. The National Stock Number assigned to this part is 4310015499042, and the Federal Supply Class is 4310 Compressors And Vacuum Pumps. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like T1 AYYB BN VT ABN 014.