# NSN 4240-01-506-4535: Mask, Air Filtering

NSN 4240-01-506-4535 (also written 4240015064535; NIIN 01-506-4535) is a mask, air filtering in Federal Supply Class 4240, Safety and Rescue Equipment. 1 manufacturer part number from 1 supplier is on record. No purchases are on record yet.

## Identification

- NSN: 4240-01-506-4535 (4240015064535)
- NIIN: 01-506-4535 (015064535)
- Item name: MASK,AIR FILTERING
- Federal Supply Class: [FSC 4240 Safety and Rescue Equipment](https://nsnexplorer.com/fsc/4240/)
- Federal Supply Group: [FSG 42](https://nsnexplorer.com/group/42/)
- 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 |
| --- | --- | --- |
| BTLQ | MASK FILTER QUANTITY | 1 |
| ALTR | FILTER TYPE | FILTER PAD |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| M2840R95 | 0FA00 | MOLDEX-METRIC, INC. DBA MOLDEX METRIC INC | [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=4240015064535&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4240015064535
- 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/4240-01-506-4535/
JSON: https://nsnexplorer.com/api/nsn/4240-01-506-4535.json