Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BZ2RS55A2S found under Switch Push by Honeywell Aerospace. The National Stock Number assigned to this part is 5930008118516, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BZ2RS55A2S.