Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 50-PK3 found under Polarizing Key Electrical Connec by Cinch Connectors Ltd. The National Stock Number assigned to this part is 5935014518116, 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 50-PK3.