Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KC22-900 found under Parts Kit Hydraulic Transmission by O Rings Inc. The National Stock Number assigned to this part is 1650008724199, and the Federal Supply Class is 1650 Aircraft Hydraulic Vacuum And De-Icing System Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like KC22-900.