Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TR81001 found under Relay Subassembly by Navair And Navsea Managed. The National Stock Number assigned to this part is 5945002012970, and the Federal Supply Class is 5945 Relays And Solenoids. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like TR81001.