Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 27843-1 found under Oscillator Noncryst by Hamilton Standard Electronics. The National Stock Number assigned to this part is 5963010300489, and the Federal Supply Class is 5963 Electronic Modules. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 27843-1.