Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R5175-24VDC found under Gage Vacuum Indicating by Isspro Inc. The National Stock Number assigned to this part is 6685015641300, 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 R5175-24VDC.