At One Click Purchasing, we are your reliable source for the NSN part 5R5421 manufactured by Caterpillar Inc. We carry a wide range of popular NSN items on our website, including Plate Instruction like part number 5R5421 which is listed with the NSN 9905011640168 for easy identification. If you are interested in 5R5421 item, then take the advantage of our online RFQ service, or peruse our website as you see fit to find other items of interest that you may wish to learn more about.