Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 32813 143XR PC 4A 4.00IN found under Disk Valve by Crane Company. The National Stock Number assigned to this part is 4820013237697, 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 32813 143XR PC 4A 4.00IN.