Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number WK3 31S found under Connector Receptacl by Itt Corporation. The National Stock Number assigned to this part is 5935001967177, 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 WK3 31S.