NSN 6640-01-648-0070, 6640016480070
SCHIRMER TEAR TEST

Federal Supply Classification: FSC 6640 - Laboratory Equipment and Supplies
National Item Identification Number: NIIN 016480070
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 6640-01-648-0070

National Stock Number (NSN) 6640-01-648-0070, or NIIN 016480070, (schirmer tear test) was assigned September 10, 2015 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 4 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 has not been procured by the US Government in over a year. There have been 10 contracts issued for this part number, with 10 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE2DH21V2175, SPE2DH21V1446, SPE2DH21V1037, SPE2DH20V3448, SPE2DH20V3283. The total value of the awarded contracts has been US$ 1,778.08.

There has been a small amount of demand for this national stock number. 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 Oct 30, 2015, 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 6640016480070 does not contain precious metals.

This information was last updated on Jul 01, 2025.

Technical Characteristics

SPECIAL FEATURES: (FEAT) THE SCHIRMER TEAR TEST (STT) IS INDICATED TO MEASURE THE RATE OF TEAR PRODUCTION; USED IN THE EVALUATION OF CONJUNCTIVITIS TO DIAGNOSE TEAR DEFICIENCY AS A CONTRIBUTING FACTOR TO OCULAR SURFACE DISEASES INCLUDING: KERATOCONJUNCTIVITIS SICCA (KCS), PIGMENTARY KERATITIS, INDOLENT CORNEAL ULCERS, EXPOSURE KERATITIS, AND OTHERS; IN ADDITION, IT SHOULD BE USED TO ASSESS LACRIMAL GLAND FUNCTION PRIOR TO CATARACT SURGERY
III PART NAME ASSIGNED BY CONTROLLING AGENCY: (CXCY) SCHIRMER TEAR TEST STRIP 10 X 5 STRIPS MERCK
PART NAME ASSIGNED BY CONTROLLING AGENCY: (CXCY) SCHIRMER TEAR TEST STRIP 10 X 5 STRIPS MERCK