Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number C1065 1 3 4 X 1 1 4 X 1 4 found under O Ring by John Crane Inc. The National Stock Number assigned to this part is 5331013978780, 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 C1065 1 3 4 X 1 1 4 X 1 4.