At One Click Purchasing, we are your reliable source for the NSN part PK28-4D manufactured by Precision Aircraft Machining. We carry a wide range of popular NSN items on our website, including Union Pipe like part number PK28-4D which is listed with the NSN 4730014237550 for easy identification. If you are interested in PK28-4D 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.