Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 511 21582 00 found under Resistor Fixed Film by Rycom Instruments. The National Stock Number assigned to this part is 5905004320393, and the Federal Supply Class is 5905 Resistors. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 511 21582 00.