National Stock Number
6640-00-443-3750
National Stock Number (NSN) 6640-00-443-3750, or NIIN 004433750, (test tube) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 3 stock numbers: 6640005591410, 6640000611627, 6640004433760.
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 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. The Government physically does not have in its possession sufficient, accurate, or legible data to purchase this part from other than current source(s). (NOTE: This code is applicable only to parts under immediate buy requirements and only as long as the deficiency is under review for resolution and appropriate recoding.) Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 18770. [A STRAIGHT WALL VESSEL WITH A FLAT OR A ROUND BOTTOM FOR USE IN VARIOUS LABORATORY PROCEDURES. IT MAY HAVE A SIDE ARM AND A MOUTH DESIGNED TO ACCOMMODATE A STOPPER OR A SCREW CAP. DO NOT USE IF A MORE SPECIFIC NAME IS AVAILABLE.]. 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 6640004433750 does not contain precious metals.
This information was last updated on Jun 01, 2025.