Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L-NB25025L-SMC04 PIECE 18 found under Ring by Pima Valveinc. The National Stock Number assigned to this part is 5365011510980, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like L-NB25025L-SMC04 PIECE 18.