Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R2H-111 found under by Ace Controls And Instrumentation Inc. The National Stock Number assigned to this part is 5365016058815, 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 R2H-111.