National Stock Number
4940-00-163-1558
National Stock Number (NSN) 4940-00-163-1558, or NIIN 001631558, (tube and flue cleaner,boiler,internal) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 001631558 was cancelled on April 29, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.
There is only one manufacturer part number associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by one supplier. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 03760. [A HAND- OR POWER-OPERATED TOOL DESIGNED TO REMOVE INSIDE DEPOSITS FROM BOILER TUBES BY CUTTING, AND/OR SCRAPING AND WITH OR WITHOUT BRUSHING. IT MAY ALSO BE EQUIPPED WITH A VIBRATOR HEAD TO REMOVE SCALE FROM THE EXTERIOR OF BOILER TUBES. EXCLUDES:BRUSH, WIRE, BOILER TUBE.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4940001631558 contains an unknown precious metal.
This information was last updated on Aug 01, 2025.