National Stock Number
6640-00-551-9805
National Stock Number (NSN) 6640-00-551-9805, or NIIN 005519805, (tubing,glass) 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: 6640009026210, 6640004459020.
There are 3 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.
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 6640005519805 does not contain precious metals.
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.