Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 161B-A07K 34 NO.23 found under Ring Retaining by Milwaukee Valve Company Inc. The National Stock Number assigned to this part is 5325015619747, and the Federal Supply Class is 5325 Fastening Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 161B-A07K 34 NO.23.