At One Click Purchasing, we are your reliable source for the NSN part PB19975 manufactured by Honeywell Intl Inc. We carry a wide range of popular NSN items on our website, including Nut Plain Square like part number PB19975 which is listed with the NSN 5310004435056 for easy identification. If you are interested in PB19975 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.