Thank you for selecting Aerospace Aviation 360 for 3504 by Keystone Electronics Corp under Connectors Interconnects. We are proud to be an ASAP Semiconductor owned and operated website, a leading distributor of aviation and aerospace part numbers like 3504. To help us better understand your parts requirements, please fill out an RFQ form for part number 3504 with your details, and our customer executive will respond to your RFQ in 15 minutes or less.