The NSN 5310991393126 (Washer Spring Tension) part number 991 4 02000 042, BS4463, SM10514-028 manufactured by Siemens Air Traffic Management, British Standards Institution, Thales Optronics Limited is available in Jet Parts 360’s inventory. Owned and operated by ASAP Semiconductor, Jet Parts 360 has over six billion parts in its inventory, including NSN 5310991393126 . ASAP is devoted to streamlining the parts procurement process for our customers, making it easy for them to search through billions of parts to find exactly what they are looking for. We have dedicated account managers ready to solve procurement issues our clients face, whether it’s a need for aerospace parts, or an aircraft on ground situation. Submit a Quote for NSN 5310991393126 parts today to get started.