Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 316517-1046 DETAIL 9 found under Valve Safety Relief by Diamond Power International Inc. The National Stock Number assigned to this part is 4820012906721, 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 316517-1046 DETAIL 9.