5342-00-380-4890 (BU0RDDWG816634)
NSN 5342-00-380-4890 (NIIN 00-380-4890) is a shutter bracket in Federal Supply Class 5342, Hardware, Weapon System. Manufacturer part number BU0RDDWG816634 (Navsurfwarcen Det Picatinny, CAGE 08KE6); also referenced as 816634 (Navair And Navsea Managed Original).
NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $532.55 gov standard price; export Schedule B 8302.50.0000.