Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2800 found under Grinder Kit Valve S by Hennessy Industries Inc. The National Stock Number assigned to this part is 5180005465429, and the Federal Supply Class is 5180 Sets Kits And Outfits Of Hand Tools. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2800.