National Stock Number (NSN) 5315-01-333-5731, or NIIN 013335731, (pin,grooved,headless) was assigned February 6, 1991 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. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 9 suppliers. Today, 9 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 8 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
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. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A625PF331, SPE5EC20C0005, SPE5EC20C0005, SPE5EC18CF038, SPE5EC18CF038. The total value of the awarded contracts has been US$ 128,582.00.
This NSN is fairly common among different weapons systems, belonging to 12 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 Jun 18, 2009, 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) 02386. [A HEADLESS ITEM OF VARIOUS SHAPES, USUALLY CYLINDRICAL, HAVING EITHER CIRCULAR OR LONGITUDINAL GROOVE(S). ITS LENGTH MUST NOT EXCEED 12 INCHES (304 MM). EXCLUDES:ROD, GROOVED, HEADLESS; SHAFT (AS MODIFIED); AND PIN, VEHICULAR LEAF SPRING SHACKLE.]. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 5315013335731 does not contain precious metals.
This NSN is associated to Schedule B 7318230000: rivets 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.