Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HIP 60-13HF4 found under Valve Vent by Walz And Krenzer Inc. The National Stock Number assigned to this part is 4820013137233, 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 HIP 60-13HF4.