NSN 6640-01-497-5789, 6640014975789
CHIP,CHEMICAL,AMMONIA

Federal Supply Classification: FSC 6640 - Laboratory Equipment and Supplies
National Item Identification Number: NIIN 014975789
Codification Country: United States
Item Name Code: INC 77777
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.

Availability: Readily Available Qualified Suppliers: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 6640-01-497-5789

National Stock Number (NSN) 6640-01-497-5789, or NIIN 014975789, (chip,chemical,ammonia) was assigned May 24, 2002 in the Federal Logistics Information System (FLIS). 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 2 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.

This part number is actively being procured by the US Government, with procurement history within the last 90 days. There have been 107 contracts issued for this part number, with 104 awards given. There is moderate competition for this NSN. The US Government has awarded contracts to 8 different suppliers. The last contract numbers awarded were: SPE2DH25V2951, SPE2DH25V2766, SPE2DH25V2194, SPE2DH25V1958, SPE2DH25V1735. The total value of the awarded contracts has been US$ 9,433.44.

This national stock number is in high demand. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Feb 26, 2011, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 77777. 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 6640014975789 does not contain precious metals.

This information was last updated on Jul 01, 2025.

Technical Characteristics

PART NAME ASSIGNED BY CONTROLLING AGENCY: (CXCY) CHIP CHEMICAL AMMONIA PROVIDES BEST RESULTS POSSIBLE
SPECIAL FEATURES: (FEAT) PROVIDES BEST RESULTS POSSIBLE; CAPILLARIES OF SEVERAL CHIPS HAVE MULTIPLE LEVELS TO HELP ELIMINATE CROSS SENSITIVITY OR DERIVE A SPECIFIC MEASUREMENT OF THE TARGETED CHEMICAL; CHIP CONSISTS OF 10 MEASUREMENT CAPILLARIES FILLED WITH SUBSTANCE SPECIFIC REAGENT SYSTEMS; GAS TYPE, PART NUMBER AND BATCH NUMBER ARE PRINTED ON CHIP AND BARCODE READ BY THE ANALYZER OPTICS CONTAINS INFORMATION ABOUT GAS TYPE, MEASURING RANGE AND MEASURING TIME REQUIRED FOR COMPLETING THE MEASUREMENT; EACH CHIP IS CALIBRATED DURING MANUFACTURING AND IS VALID FOR 2 YEARS; AMMONIA, RANGE 2.0-50.0 PPM