# NSN 6540-01-574-5740: Magnifier, Eyepiece

NSN 6540-01-574-5740 (also written 6540015745740; NIIN 01-574-5740) is a magnifier, eyepiece in Federal Supply Class 6540, Ophthalmic Instruments, Equipment, and Supplies. 4 manufacturer part numbers from 3 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 6540-01-574-5740 (6540015745740)
- NIIN: 01-574-5740 (015745740)
- Item name: MAGNIFIER,EYEPIECE
- 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 2026-10-10)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | MAGNIFIER EYEPIECE 2.5X OPTIVISOR DA-5 |
| FEAT | SPECIAL FEATURES | GLASS LENSES FRAME MOUNTED; DESIGNED FOR CLOSE WORK; CAN BE WORN OVER GLASSES OR ALONE; FITS OVER THE HEAD; MAGNIFICATION 2.5X |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 07-803-3553 | 3G5T7 | PATTERSON VETERINARY SUPPLY, INC. DIV PATTERSON VETERINARY SUPPLY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 12345 | 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6540NCM093544 | 64616 | DEFENSE MEDICAL STANDARDIZATION BOARD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| OPTIVISOR DA-5 | 3G5T7 | PATTERSON VETERINARY SUPPLY, INC. DIV PATTERSON VETERINARY SUPPLY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=6540015745740&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6540015745740
- AMSC record: https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/
- 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/6540-01-574-5740/
JSON: https://nsnexplorer.com/api/nsn/6540-01-574-5740.json