Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LH90078-01 found under Coupling Clamp Groo by Light Helicopter Turbine Engine Co. The National Stock Number assigned to this part is 5342015792133, 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 LH90078-01.