National Stock Number (NSN) 4140-00-227-8228, or NIIN 002278228, (guard,fan impeller) was assigned February 3, 1969 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 6 stock numbers. Five of the National Stock Numbers that it replaces are: 4140013406394, 4140010716186, 4140011643256, 4240011498190, 4140007573611.
There are 17 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 14 suppliers. Today, 12 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Jan 31, 2008. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPM7M208M2972. The total value of the awarded contracts has been US$ 329.46.
This NSN is very common among different weapons systems, belonging to 113 different platforms.
There has been a small amount of 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 Apr 25, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The annual buy value of this part falls below the screening threshold of $10,000 but it has been screened for known source(s). (NOTE: This code shall not be used when screening parts entering the inventory. It shall not be assigned in preference to or supersede any other AMSC.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 36295. [A SAFETY DEVICE SPECIFICALLY DESIGNED TO PROTECT OR SHIELD A FAN IMPELLER FROM PHYSICAL DAMAGE AND/OR PREVENT POSSIBLE INJURY TO PERSONNEL WHILE THE FAN IS IN OPERATION. IT MAY CONSIST OF A WIREGUARD, SCREEN, GRILLE AND THE LIKE. EXCLUDES COVER, ELECTRIC FAN AND GRILLE, METAL.]. 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 4140002278228 does not contain precious metals.
This NSN is associated to Schedule B 8414901040: parts of fans (including blowers) and ventilating or recycling hoods for permanent installation (of subheading 8414.51.00). The Schedule B End Use is listed as household appliances.
This information was last updated on Jul 01, 2025.