Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 10002290-505 found under Test Set Emergency Escape Sequen by Teledyne Risi Inc. The National Stock Number assigned to this part is 4920015680277, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 10002290-505.