Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PES42P-48VDC found under Switch Fiber Optic by Garrettcom Inc. The National Stock Number assigned to this part is 6021016131698, and the Federal Supply Class is 6021 Fiber Optic Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PES42P-48VDC.