Thank you for selecting Aerospace Aviation 360 for 172-5A3 by Teledyne Instruments Inc under Rf Relay. We are proud to be an ASAP Semiconductor owned and operated website, a leading distributor of aviation and aerospace part numbers like 172-5A3. To help us better understand your parts requirements, please fill out an RFQ form for part number 172-5A3 with your details, and our customer executive will respond to your RFQ in 15 minutes or less.