NSN 6640-00-471-5691, 6640004715691
BATH,CONSTANT TEMPERATURE

Federal Supply Classification: FSC 6640 - Laboratory Equipment and Supplies
National Item Identification Number: NIIN 004715691
Codification Country: United States
Item Name Code: INC 32951
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (P) 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.

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DLMS^® Summary

National Stock Number 6640-00-471-5691

National Stock Number (NSN) 6640-00-471-5691, or NIIN 004715691, (bath,constant temperature) was assigned January 11, 1971 in the Federal Logistics Information System (FLIS). NIIN 004715691 was cancelled on April 30, 2010, with a cancelled status of "Item is Cancelled - Inactive." There is no known replacement specified for this stock number. This NSN does not replace any other NSNs.

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 3 suppliers. 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. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over 5 years.

There has been very little demand for this national stock number. The demand for this NSN originated from less than 5 countries.

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 6640004715691 does not contain precious metals.

This information was last updated on Aug 01, 2025.