National Stock Number (NSN) 5310-01-281-5645, or NIIN 012815645, (nut,clip-on) was assigned June 27, 1988 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. 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, with the most recent procurement date of Nov 03, 2014. There have been 2 contracts issued for this part number, with 2 awards given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE5E715V0578, SPE5E714M2466. The total value of the awarded contracts has been US$ 165.49.
This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.
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 Dec 13, 2013, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. 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) 35871. [AN INTERNALLY THREADED FASTENER, PLAIN OR SELF-LOCKING, OF VARIOUS SHAPES ATTACHED TO A PREFORMED ITEM OF SEMI-RIGID MATERIAL DESIGNED TO RETAIN, POSITION OR SUPPORT OTHER ITEMS BY ITS OWN INHERENT SPRING ACTION. THE INTERNALLY THREADED FASTENER AND THE PREFORMED ITEM MAY BE OF ONE PIECE CONSTRUCTION OR FASTENED TOGETHER BY OTHER MEANS.]. 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 5310012815645 does not contain precious metals.
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 Aug 01, 2025.