Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 549AS131-1 found under Plug Machine Thread by Fleet Readiness Center Southeast Div Navy. The National Stock Number assigned to this part is 5365011097649, 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 549AS131-1.