Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LR1 270R 2 .25W found under Resistor Fixed Film by Croster Electronics. The National Stock Number assigned to this part is 5905011370108, 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 LR1 270R 2 .25W.