Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number V500-1 8CBM 0-30HG found under Gage Vacuum Indicating by Ametek Inc. The National Stock Number assigned to this part is 6685001281941, 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 V500-1 8CBM 0-30HG.