National Stock Number
5306-01-551-4621
National Stock Number (NSN) 5306-01-551-4621, or NIIN 015514621, (bolt,hydraulic) was assigned May 17, 2007 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are 3 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 4 suppliers. Today, 4 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 3 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over a year. There have been 9 contracts issued for this part number, with 9 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: SPE4A622V535C, SPE5E417V6626, SPE5E415V4598, SPM5E413V2143, SPM5AB11V3074. The total value of the awarded contracts has been US$ 14,630.23.
This NSN is unique to one weapons system.
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 Apr 13, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The data or the rights to use the data needed to purchase this part from additional sources are not owned by the Government and it has been determined that it is uneconomical to purchase them. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 67769. [A FASTENER USED FOR CLAMPING A JOINT ASSEMBLY. IT IS DESIGNED TO BE INSERTED AND REMOVED BY HAND AND HAS SUFFICIENT CLEARANCE TO AVOID THE RISK OF SEIZURE. USING PORTABLE TOOL, A PRE-DETERMINED HYDRAULIC PRESSURE IS APPLIED WHICH STRETCHES THE BOLT ALONG ITS AXIS, LEAVING THE NUT ONLY REQUIRING ROTATION TO TAKE UP THE AXIAL STRETCH IN THE BOLT. ON RELEASE OF HYDRAULIC PRESSURE A HIGH AXIAL LOAD IS ACHIEVED.]. 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 5306015514621 does not contain precious metals.
This NSN is associated to Schedule B 9032900000: parts and accessories of automatic regulating or controlling instruments and apparatus. The Schedule B End Use is listed as measuring, testing, control instruments. NAICS classification category 334513: instruments and related products manufacturing for measuring, displaying, and controlling industrial process variables.
This information was last updated on Aug 01, 2025.