At One Click Purchasing, we are your reliable source for the NSN part 3B90 manufactured by Caterpillar Inc. We carry a wide range of popular NSN items on our website, including Bracket Idler Shaft like part number 3B90 which is listed with the NSN 2530005638193 for easy identification. If you are interested in 3B90 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.