Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number SS4059-14-107 found under Spacer Sleeve by Sikorsky Aircraft Corporation. The National Stock Number assigned to this part is 5365014152428, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like SS4059-14-107.