National Stock Number
6540-01-559-1402
National Stock Number (NSN) 6540-01-559-1402, or NIIN 015591402, (refractor and keratometer strap) was assigned December 6, 2007 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.
There are 5 manufacturer part numbers associated with this NSN. One of those 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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Dec 07, 2007, this NSN's acquisition method was noted as: Not established. Not established.
This NSN is assigned to Item Name Code (INC) 77777. 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 6540015591402 does not contain precious metals.
This information was last updated on Aug 01, 2025.