Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 36630 D-1440 found under Thread Cutter Receding Segmental by Ridge Tool Company. The National Stock Number assigned to this part is 5136011731423, and the Federal Supply Class is 5136 Taps Dies And Collets Hand And Machine. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 36630 D-1440.