# NSN 6540-01-565-0590: Insert, Optical, Chemical-Biologic

NSN 6540-01-565-0590 (also written 6540015650590; NIIN 01-565-0590) is an insert, optical, chemical-biologic in Federal Supply Class 6540, Ophthalmic Instruments, Equipment, and Supplies. 4 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 6540-01-565-0590 (6540015650590)
- NIIN: 01-565-0590 (015650590)
- Item name: INSERT,OPTICAL,CHEMICAL-BIOLOGIC
- 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 | SPECTACLE KIT CAGE TYPE LARGE |
| FEAT | SPECIAL FEATURES | STRAPLESS SPECTACLE INSERT ENABLING VISION CORRECTION WHEN WEARING PROTECTIVE GAS MASK; WIRE FRAME FOLLOWS THE PERIPHERY OF THE GAS MASK VISOR AND SUSPENDS SPECTACLE FRAME FROM ABOVE; INCLUDES: FRAME ASSEMBLY P/N 493583, SUPPORT ASSEMBLY P/N 10093972, GUIDE P/N 454816, LABEL AND INSTRUCTIONS P/N 10094791; FOR USE W/ MCU-2P GAS MASK AS WELL AS MSAS MILLENIUM GAS MASK P/N 10051288 (LARGE) |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10093969 | 8B9P7 | MSA SAFETY SALES, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 10093969 | 8F723 | MINE SAFETY APPLIANCES COMPANY, LLC DBA M S A | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6540NCM082656 | 64616 | DEFENSE MEDICAL STANDARDIZATION BOARD | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 8575 | 89875 | DEFENSE LOGISTICS AGENCY DIRECTORATE OF MEDICAL MATERIEL DEFENSE SUPPLY CENTER PHILADELPHIA | [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=6540015650590&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=6540015650590
- 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/6540-01-565-0590/
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