Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 998051064 found under Parts Kit Valve by United Refrigeration Inc. The National Stock Number assigned to this part is 4820016088587, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 998051064.