Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 51E17599W1018RETAINERRING found under Socket Plug In Elec by Cinch Connectors Ltd. The National Stock Number assigned to this part is 5935008214957, 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 51E17599W1018RETAINERRING.