4510-01-593-5828 (8475357)
NSN 4510-01-593-5828 (NIIN 01-593-5828) is a flush valve vacuum breaker in Federal Supply Class 4510, Plumbing Fixtures And Accessories — an item specifically designed to fit any type of flush valve in plumbing line for preventing back-syphonage to supply system from plumbing fixture. Manufacturer part number 8475357 (Naval Sea Systems Command, CAGE 53711).
NIIN assigned April 2011; DEMIL A (none required); unit of issue EA (each), $2,095.53 gov standard price; export Schedule B 8481.90.9090.