At One Click Purchasing, we are your reliable source for the NSN part 312B manufactured by Frederick Custom Machining Inc. We carry a wide range of popular NSN items on our website, including Seal Assembly Shaft Spring Loade like part number 312B which is listed with the NSN 4320008726450 for easy identification. If you are interested in 312B 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.