Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 18-14E found under Drill Gauges by U S Air Tool Co Inc. The National Stock Number assigned to this part is 3620015850082, and the Federal Supply Class is 3620 Rubber And Plastic Working Machine. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 18-14E.