4810-01-327-1167 (34568-001-3231-001)
4810-01-327-1167 is equivalent to manufacture part number 21990-B. It is a fluid valve stem and is classified under Federal Supply Class 4810 (4810 - Valves, Powered), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 4810 - Valves, Powered and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.