Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number B36-2452PC4 found under Ring Seat by Hammel Dahl Inc. The National Stock Number assigned to this part is 4820007977458, 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 B36-2452PC4.