Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S81917B-04-M25 found under Backshell Electrica by Servicair B W Elliott Mfg Co Llc. The National Stock Number assigned to this part is 5935014591078, and the Federal Supply Class is 5935 Connectors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like S81917B-04-M25.