Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AD-SP-2078 found under Seal Assembly by John Crane Inc. The National Stock Number assigned to this part is 2530011832610, and the Federal Supply Class is 2530 Vehicular Brake Steering Axle Wheel And Track Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AD-SP-2078.