Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number P1200S-25K found under Disk Rupturable by Superior Valve Co. The National Stock Number assigned to this part is 4820012652395, 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 P1200S-25K.