National Stock Number
6640-00-494-3898
National Stock Number (NSN) 6640-00-494-3898, or NIIN 004943898, (stopcock,laboratory apparatus) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). NIIN 004943898 was cancelled on November 2, 2006, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 6640008523457.
There is only one manufacturer part number 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, only one supplier is 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 assigned to Item Name Code (INC) 17488. [A MANUALLY OPERATED DEVICE CONNECTED TO LABORATORY APPARATUS TO REGULATE OR STOP THE FLOW OF LIQUID OR GAS.]. 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 6640004943898 does not contain precious metals.
This information was last updated on Jul 01, 2025.