Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PWC30439 found under Gage Thickness Dial Indicating by Mk Test Systems. The National Stock Number assigned to this part is 5210001150688, and the Federal Supply Class is 5210 Measuring Tools Craftsmens. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like PWC30439.