Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 560-001-690 found under Parts Kit Lubricant Pump by Ritter Technology Llc. The National Stock Number assigned to this part is 4930012621115, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 560-001-690.