National Stock Number
5325-00-489-1050
National Stock Number (NSN) 5325-00-489-1050, or NIIN 004891050, (stud,turnlock fastener) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 2 stock numbers: 5325001687119, 5325009340623.
There are 14 manufacturer part numbers associated with this NSN. 5 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 13 suppliers. Today, 10 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 7 suppliers are deemed design controlled or valid supply parts.
This part number has not been procured by the US Government in over 5 years.
This NSN is very common among different weapons systems, belonging to 50 different platforms.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 25, 2008, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) 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) 18421. [A PINLIKE ITEM DESIGNED TO TURN WITHIN AND BE HELD IN PLACE BY AN EYELET, TURNLOCK FASTENER; RING, RETAINING; OR THE SURFACE OF THE ITEM IT FASTENS. IT IS PROVIDED WITH EITHER A CAM SLOT, CAM LEAD THREADS, OR A HOLD FOR ACCOMMODATING A PIN. SECURING IS ACCOMPLISHED BY MATING WITH A LOCKSPRING, TURNLOCK FASTENER OR RECEPTACLE, TURNLOCK FASTENER. IT HAS EITHER PROVISIONS TO ACCOMMODATE A KNOB OR EXTENSION OR HAS A HEAD WHICH HAS PROVISIONS TO FACILITATE TURNING.]. 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 5325004891050 does not contain precious metals.
This NSN is associated to Schedule B 9607190000: slide fasteners, nesoi. The Schedule B End Use is listed as finished textile supplies. NAICS classification category 339993: fastener, button, needle, and pin manufacturing.
This information was last updated on Aug 01, 2025.