Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HD34-18-20SN found under Connector Bodyreceptacleelectr by Add Industries. The National Stock Number assigned to this part is 5935016785313, 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 HD34-18-20SN.