Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8AP305R found under Valve Stop Lift Check by Commercial Stamping And Forging Inc. The National Stock Number assigned to this part is 4820004018199, 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 8AP305R.