National Stock Number (NSN) 5365-00-281-9224, or NIIN 002819224, (ring,lock,serrated) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 7 stock numbers. Five of the National Stock Numbers that it replaces are: 5365006208226, 5310005959758, 5310005965602, 5310006857327, 5310006851686.
There are 24 manufacturer part numbers associated with this NSN. 9 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 22 suppliers. Today, 15 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 9 suppliers are deemed design controlled or valid supply parts.
This part number has been procured by the US Government within the last year, but shows no recent (last 90 days) procurement activity. There have been 5 contracts issued for this part number, with 5 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE4A725P5923, SPE4A724P2185, SPE4A722P1629, SPE4A722P1629, SPE4A721PA386. The total value of the awarded contracts has been US$ 12,886.22.
This NSN is very common among different weapons systems, belonging to 33 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 Dec 06, 2016, 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) 16013. [A LOCKING DEVICE WHICH IS SERRATED ON THE INSIDE AND OUTSIDE DIAMETERS. IT MAY HAVE OUTER SERRATIONS OMITTED ON ONE OR TWO SIDES FOR CLOSE EDGE INSTALLATION. THE INNER SERRATIONS ENGAGE THE MATING SERRATIONS OF BOLTS, INSERTS, NUTS, STUDS OR SIMILAR ITEMS TO BE LOCKED IN PLACE. THE OUTER SERRATIONS BROACH THEIR WAY INTO PARENT MATERIAL WHEN DRIVEN OR PRESSED INTO PLACE.]. 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 5365002819224 does not contain precious metals.
This NSN is associated to Schedule B 8431499057: parts, nesoi, of machinery of heading 8429 or 8430. The Schedule B End Use is listed as excavating machinery. NAICS classification category 333120: construction machinery manufacturing.
This information was last updated on Aug 01, 2025.