Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 00A-12377-043 found under Parts Kit Valve by Tiffin Parts Llc. The National Stock Number assigned to this part is 4820012730443, 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 00A-12377-043.