5340-00-290-7223 (MILC52078)
NSN 5340-00-290-7223 (NIIN 00-290-7223) is a dust and moi protective cap-plug in Federal Supply Class 5340, Hardware, Commercial — an item specifically designed to fit into or over the opening(s) of various items to provide mechanical protection and/or to prevent the entrance of foreign. Manufacturer part number MILC52078 (Military Specifications, CAGE 81349); also referenced as 57A (Caplugs LLC); SIZE57A (Protective Closures Co Inc).
NIIN assigned January 1963; DEMIL A (none required); unit of issue EA (each), $0.42 gov standard price; export Schedule B 3926.90.4500; ships at 0.0313 lb / 0.0069 cu ft. Supersedes 5340-00-826-6024 (1960).