At One Click Purchasing, we are your reliable source for the NSN part 4557 manufactured by Sakura Finetek U S A Inc. We carry a wide range of popular NSN items on our website, including Tissue Embedding Mold like part number 4557 which is listed with the NSN 6640012675641 for easy identification. If you are interested in 4557 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.