Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1 2 INCH TYPE ST found under Disk Rupturable by Fike Corp. The National Stock Number assigned to this part is 4820013053389, 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 1 2 INCH TYPE ST.