National Stock Number
6530-01-167-6652
National Stock Number (NSN) 6530-01-167-6652, or NIIN 011676652, (locknut,neurosurgical headrest) was assigned December 3, 1983 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 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are 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 Apr 16, 2010. There have been 5 contracts issued for this part number, with 4 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPM2DH10M1011, SPM2DS10MB366, SPM2DS10MB365, SPM2DS08M7398, SP020099D7150. The total value of the awarded contracts has been US$ 238.06.
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 Dec 02, 2006, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 51795. [A REPLACEMENT ITEM WHICH IS A COMPONENT PART OF THE MAYFIELD NEUROSURGICAL HEADREST SYSTEM. IT IS DESIGNED TO SECURE THE NEUROSURGICAL HEADREST TO THE OPERATING TABLE. EXCLUDES:LOCKNUT,CRANIAL SCREW,ORAL-MAXILLOFACIAL SURGERY AND LOCKNUT,ORAL-MAXILLOFACIAL SURGERY.]. 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 6530011676652 does not contain precious metals.
This NSN is associated to Schedule B 9402900020: medical, surgical, dental or veterinary furniture, nesoi. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 337127: institutional furniture manufacturing.
This information was last updated on Aug 01, 2025.