Owned and operated by ASAP Semiconductor, ASAP NSN Parts is your new one-stop-shop for all your frame and harness NSN parts and components related needs. Our goal is to make the parts purchasing process as simple as possible. With us, you can find frame and harness with NSN 5821-00-400-3173, 5821-00-134-1530 and manufactured by Lockheed Martin Corp Div Advanced Technology Laboratories, Optex Systems Inc at some of the most competitive prices in the market. Just fill out and submit an RFQ to get started on a quick and competitive quote.