At One Click Purchasing, we are your reliable source for the NSN part 027M manufactured by Submersible Systems Inc. We carry a wide range of popular NSN items on our website, including O Ring like part number 027M which is listed with the NSN 5331013922701 for easy identification. If you are interested in 027M 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.