National Stock Number
5307-00-188-1666
National Stock Number (NSN) 5307-00-188-1666, or NIIN 001881666, (stud,self-locking) was assigned March 16, 1973 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 5307011338691.
There are 12 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 14 suppliers. Today, 8 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, there are no suppliers that are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is somewhat common among different platforms, belonging to 5 different weapons systems.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Aug 02, 2005, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.
This NSN is assigned to Item Name Code (INC) 27783. [A HEADED FASTENER THREADED EXTERNALLY ON A PORTION OR ON THE FULL LENGTH OF THE SHANK. THE HEAD HAS PROJECTIONS ON THE UNDERSIDE OR PERIPHERY, OR IS OTHERWISE DESIGNED TO BE MECHANICALLY PRESSED AND EMBEDDED IN A METALLIC PANEL, OR THE LIKE. IT IS SECURELY LOCKED IN POSITION BY THE DISPLACED METAL. FOR ITEMS THAT REQUIRE LOCKING RINGS, SEE BOLT, SELF-LOCKING AND STUD, LOCKED IN. EXCLUDES:INSERT, SCREW THREAD.]. 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 5307001881666 does not contain precious metals.
This information was last updated on Aug 01, 2025.