National Stock Number (NSN) 5310-01-057-0889, or NIIN 010570889, (nut,self-locking,assembled washe) was assigned March 6, 1978 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5310001357168.
There are 4 manufacturer part numbers associated with this NSN. 2 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 8 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 a strong supply network for this NSN, with 14 sources of supply.
This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Mar 13, 2019. There have been 19 contracts issued for this part number, with 39 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 8 different suppliers. The last contract numbers awarded were: SPE5E819P1636, SPE5E819P1636, SPE5EY19F3179, SPE5EY19F0567, SPE5EY19F0427. The total value of the awarded contracts has been US$ 2,015,403.71.
This NSN is fairly common among different weapons systems, belonging to 16 different platforms.
There has been a moderate amount of demand for this national stock number. Globally, demand for this NSN has originated from 9 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 17, 2017, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 29736. [A NUT ON WHICH HAS BEEN ASSEMBLED A NONREMOVABLE WASHER. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER.]. 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 5310010570889 contains an unknown precious metal.
This NSN is associated to Schedule B 7318160000: nuts of iron or steel. The Schedule B End Use is listed as finished metal shapes. NAICS classification category 332722: bolt, nut, screw, rivet, and washer manufacturing.
This information was last updated on Jul 01, 2025.