Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 25-18605-123 found under Bearing Block Eleva by K And K Precision Manufacturing Inc. The National Stock Number assigned to this part is 1450010604607, 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 25-18605-123.