National Stock Number
4920-01-497-1891
National Stock Number (NSN) 4920-01-497-1891, or NIIN 014971891, (heater,aircraft engine maintenan) was assigned May 13, 2002 in the Federal Logistics Information System (FLIS). 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.
There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 13, 2020, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 42577. [A SPECIFICALLY DESIGNED HEATING DEVICE USED TO HEAT ENGINE COMPONENTS SUCH AS TURBINES, FLANGES, BEARINGS, SEALS AND THE LIKE, DURING MAINTENANCE/ASSEMBLY. USUALLY HAS EXTERNAL/REMOTE CONTROLS AND AN EXTERNAL POWER SOURCE.]. 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 4920014971891 does not contain precious metals.
This information was last updated on Jul 01, 2025.