# NSN 4240-01-396-9543: Facepiece, Breathing Equipment

NSN 4240-01-396-9543 (also written 4240013969543; NIIN 01-396-9543) is a facepiece, breathing equipment 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: 4240-01-396-9543 (4240013969543)
- NIIN: 01-396-9543 (013969543)
- Item name: FACEPIECE,BREATHING EQUIPMENT
- 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 |
| --- | --- | --- |
| BSRF | FACEPIECE DESIGN | FULL |
| BSRL | FACEPIECE SIZE DESIGNATION | LARGE |
| FEAT | SPECIAL FEATURES | BLACK HYCAR, CONSTANT FLOW WITH DUAL VALVE, MEETS NIOSH/MSHA APPROVAL FOR INSTRINSICALLY SAFE APPARATUS |
| MATT | MATERIAL | FACEPIECE LENS PLASTIC |
| MATT | MATERIAL | FACEPIECE RUBBER SYNTHETIC |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 472670 | 55799 | MINE SAFETY APPLIANCES COMPANY | [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=4240013969543&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4240013969543
- 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/4240-01-396-9543/
JSON: https://nsnexplorer.com/api/nsn/4240-01-396-9543.json