Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number PT 230 found under Contact Point Measuring Instrument by Mahr Federal Inc. The National Stock Number assigned to this part is 5210011228387, 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 PT 230.