Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K28 104A found under Spacer Sleeve by Sutton Landis Shoe Machinery Co. The National Stock Number assigned to this part is 5365003597351, 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 K28 104A.