# NSN 6540-01-671-4394: Glasses, Visual Acuity Testing

NSN 6540-01-671-4394 (also written 6540016714394; NIIN 01-671-4394) is a glasses, visual acuity testing in Federal Supply Class 6540, Ophthalmic Instruments, Equipment, and Supplies. 4 manufacturer part numbers from 4 suppliers are on record. It was last purchased in Oct 2026.

## Identification

- NSN: 6540-01-671-4394 (6540016714394)
- NIIN: 01-671-4394 (016714394)
- Item name: GLASSES,VISUAL ACUITY TESTING
- Federal Supply Class: [FSC 6540 Ophthalmic Instruments, Equipment, and Supplies](https://nsnexplorer.com/fsc/6540/)
- Federal Supply Group: [FSG 65](https://nsnexplorer.com/group/65/)
- Acquisition method suffix code: AMSC Z: a commercial, nondevelopmental or off-the-shelf item. (observed 2026-10-28)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| FEAT | SPECIAL FEATURES | GLASSES POLARIZED FOR 3-D VIEWERS FOR USE IN STEREOPSIS, AMBLYOPIA, AND STRABISMUS TESTING. USED WITH END ITEM VISUAL ACUITY PROJECTOR 6540-01-577-1060. |
| ZZZY | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | COMPANY CAGE CODE 02012, STEREO OPTICAL IS THE OEM AND ONLY SELLS IN UNIT OF ISSUE OF PKG/5. THIS NSN IS PURCHASED BY THE DISTRIBUTOR WITH UNIT OF ISSUE OF 1. |
| AGAV | END ITEM IDENTIFICATION | 6540-01-577-1060; PROJECTOR, VISUAL ACUITY TEST |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | POLARIZED GLASSES FOR THE VISUAL ACUITY PROJECTOR |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 1502274 | 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6540NCM184070 | 64616 | DEFENSE MEDICAL STANDARDIZATION BOARD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| RA1SOSO010 | 02012 | STEREO OPTICAL COMPANY, INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| RA1SOSO010 | 6T406 | LOMBART BROTHERS, INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-27 | [SPE2DS27V0831](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6540016714394) | GLASSES, VISUAL ACUITY TESTING | SZY HOLDINGS, LLC DBA SZY HOLDINGS LLC | $61.66 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6540016714394&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6540016714394
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- USAspending contract actions (each award above links to its record)
- All data is public U.S. government data; every row above links to its source record where one exists.

Canonical page: https://nsnexplorer.com/nsn/6540-01-671-4394/
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