4210-01-681-2971 (MODEL RC -1)
NSN 4210-01-681-2971 (NIIN 01-681-2971) is an automatic sprinkler alarm in Federal Supply Class 4210, Firefighting Equipment — a device connected in series with the discharge side of the sprinkler system alarm control valve which is energized when water flows through the control valve. Manufacturer part number MODEL RC -1 (Tyco Fire Products Lp, CAGE 03670); also referenced as TFP 920 (Tyco Fire Products Lp).
NIIN assigned June 2019; DEMIL A (none required); ESD/EMI-sensitive; export Schedule B 8424.90.9500.