Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17172 found under Gearshaft Multiple Gears by Abrams Instrument Corporation. The National Stock Number assigned to this part is 3040000119655, and the Federal Supply Class is 3040 Miscellaneous Power Transmission Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 17172.