National Stock Number
6640-00-299-8690
National Stock Number (NSN) 6640-00-299-8690, or NIIN 002998690, (tubing,glass) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 6640005580295.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is unique to one weapons system.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Apr 02, 1991, this NSN's acquisition method was noted as: Not established. Not established.
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 6640002998690 contains an unknown precious metal.
This NSN is associated to Schedule B 7002310000: tubes of fused quartz or other fused silica, unworked. The Schedule B End Use is listed as mineral supplies-manufactured. NAICS classification category 327212: other pressed and blown glass and glassware manufacturing.
This information was last updated on Aug 01, 2025.