At One Click Purchasing, we are your reliable source for the NSN part 121-B manufactured by Fairview Fittings And Mfg Ltd. We carry a wide range of popular NSN items on our website, including Plug Tube Fitting T like part number 121-B which is listed with the NSN 4730015975851 for easy identification. If you are interested in 121-B 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.