At One Click Purchasing, we are your reliable source for the NSN part CR5 166 manufactured by Newmans Inc. We carry a wide range of popular NSN items on our website, including O Ring like part number CR5 166 which is listed with the NSN 5331013109955 for easy identification. If you are interested in CR5 166 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.