Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 50ARM300-250 found under Wire Release Tool by Dayton Granger Inc. The National Stock Number assigned to this part is 5120011848039, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 50ARM300-250.