Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number EEP54-ASX PIECE 3 found under O Ring by Ernst Flow Industries Inc. The National Stock Number assigned to this part is 5331011635611, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like EEP54-ASX PIECE 3.