National Stock Number
4810-01-277-4934
National Stock Number (NSN) 4810-01-277-4934, or NIIN 012774934, (drain,automatic,fire sprinkling system) has an unknown assigned date. NIIN 012774934 was cancelled on September 2, 1991, with a cancelled status of "Item is Cancelled as Duplicate." This NSN was replaced by NSN 4810012785416. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 19563. [A DEVICE ACTUATED BY THE FORCE OF THE FLOW OF WATER PASSING THROUGH IT. DESIGNED TO REMAIN OPEN TO PERMIT A GRAVITY FLOW, CLOSING WHEN THE FLOW EXCEEDS THAT OF GRAVITY PRESSURE. USED TO DRAIN SMALL LEAKAGE FROM FIRE PROTECTION SPRINKLING SYSTEMS.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4810012774934 does not contain precious metals.
This information was last updated on Jul 01, 2025.