Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number VSF 8R HS XS 130 found under Valve Safety Relief by Ruthman Pump And Engineering Inc. The National Stock Number assigned to this part is 4820016614045, 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 VSF 8R HS XS 130.