At One Click Purchasing, we are your reliable source for the NSN part 4849B manufactured by Dresser Rand Company. We carry a wide range of popular NSN items on our website, including O Ring like part number 4849B which is listed with the NSN 5331000742281 for easy identification. If you are interested in 4849B 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.