National Stock Number
6640-00-673-5938
National Stock Number (NSN) 6640-00-673-5938, or NIIN 006735938, (bath,constant temperature) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
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.
Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Sep 02, 2000, 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 cost to the Government to breakout this part and acquire it competitively has been determined to exceed the projected savings over the life span of the part. Valid AMCs: 1, 2, 3, 4 and 5.
This NSN is assigned to Item Name Code (INC) 32951. [AN ITEM CONSISTING OF A RESERVOIR AND A TEMPERATURE CONTROL DEVICE. IT UTILIZES A LIQUID MEDIA TO HEAT OR CONTROL SAMPLES USED IN LABORATORY TESTING OF ORGANIC COATINGS, ASPHALT AND PETROLEUM PRODUCTS. IT CAN ALSO BE USED TO VERIFY THE ACCURACY OF TEMPERATURE SENSORS OR INSTRUMENTS. IT MAY INCLUDE SUCH COMPONENTS AND ACCESSORIES AS WATER JACKETS, HEATERS, COOLING COILS, CIRCULATING PUMPS, BOMBS, AND RACKS. EXCLUDES:WATER BATH, ELECTRIC AND WATER BATH, NONELECTRIC.]. 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 6640006735938 does not contain precious metals.
This NSN is associated to Schedule B 9018908000: other instruments and appliances used in medical, surgical, dental or veterinary sciences, nesoi. The Schedule B End Use is listed as medicinal equipment. NAICS classification category 339112: surgical and medical instrument manufacturing.
This information was last updated on Aug 01, 2025.