National Stock Number
                                            5310-00-404-9330
                                    
                                
                            
                            
                                National Stock Number (NSN) 5310-00-404-9330, or NIIN 004049330, (nut,plain,round) was assigned April 5, 1971 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. 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. 
 
  Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jul 17, 2004, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer.  This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5. 
This NSN is assigned to Item Name Code (INC) 15887. [A NUT, CIRCULAR IN SHAPE, WHICH MAY HAVE WRENCHING FACILITIES SUCH AS FLATS, HOLES, PROTRUSIONS, SLOTS OR SPLINES IN OR ON THE PERIPHERY OR IN THE FACE OPPOSITE THE BEARING SURFACE. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE OUTSIDE DIAMETER, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. SEE ALSO NUT (1), PLAIN, KNURLED. (WHEN HEIGHT OR THICKNESS AND/OR OUTSIDE DIAMETER IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)]. 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 5310004049330 contains an unknown precious metal. 
This information was last updated on Aug 01, 2025.