Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B5048A found under Plug Machine Thread by Brand Hydraulics. The National Stock Number assigned to this part is 5365012280729, 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 B5048A.