At One Click Purchasing, we are your reliable source for the NSN part B06421Q manufactured by Robbins And Myers Inc. We carry a wide range of popular NSN items on our website, including O Ring like part number B06421Q which is listed with the NSN 5331013212048 for easy identification. If you are interested in B06421Q 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.