Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3139753-7 found under by Sullivan Machinery Co. The National Stock Number assigned to this part is 3820001731925, and the Federal Supply Class is 3820 Mining Rock Drilling Earth Boring And Related Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 3139753-7.