National Stock Number
6640-00-492-5671
National Stock Number (NSN) 6640-00-492-5671, or NIIN 004925671, (tubing,glass) was assigned February 11, 1970 in the Federal Logistics Information System (FLIS). NIIN 004925671 was cancelled on December 16, 2017, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. 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 one supplier. Today, one supplier is listed as an Active supplier 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 assigned to Item Name Code (INC) 04508. [A TUBULAR ITEM OF GLASS HAVING A UNIFORM CROSS SECTION THROUGHOUT ITS ENTIRE LENGTH. IT MAY HAVE REFERENCE AND/OR INDICATOR MARKINGS AND IS GENERALLY USED WHERE THE CONVEYING, CONTAINING, OR VISUAL INSPECTION OF LIQUIDS AND/OR GASSES ARE REQUIRED, SUCH AS LABORATORIES. EXCLUDES:INSULATOR (1), WASHER; AND WASHER (AS MODIFIED).]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 6640004925671 contains an unknown precious metal.
This information was last updated on Jul 01, 2025.