Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 61A-1D-0800 found under Gage Absolute Pressure Dial Indi by Siemens Water Technologies Corp. The National Stock Number assigned to this part is 6685000645155, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 61A-1D-0800.