# NSN 4240-01-505-6644: Communication System, Respirator

NSN 4240-01-505-6644 (also written 4240015056644; NIIN 01-505-6644) is a communication system, respirator in Federal Supply Class 4240, Safety and Rescue Equipment. 2 manufacturer part numbers from 1 supplier are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4240-01-505-6644 (4240015056644)
- NIIN: 01-505-6644 (015056644)
- Item name: COMMUNICATION SYSTEM,RESPIRATOR
- 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 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AKYD | ACCESSORY COMPONENTS AND QUANTITY | MICROPHONE 1; SPEAKER1 |
| FEAT | SPECIAL FEATURES | ESP II COMMUNICATIONS SYSTEM FOR MINE SAFETY APPLIANCES CO. ADVANTAGE 1000 FACEPIECE, SYSTEM IS A ONE-PIECE SELF-CONTAINED ELECTRONEC SPEECH PROJECTION DEVICE, USES STANDARD AAA ALKALINE BATTERIES (NOT INCLUDED), WEIGHT IS 8OZ. |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10026265 | 55799 | MINE SAFETY APPLIANCES COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 805074 | 55799 | MINE SAFETY APPLIANCES COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-15 | [SPE8E626V2260](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4240015056644) | COMMUNICATION SYSTE | HOOSIER INDUSTRIAL SUPPLY, INC | $2,728.00 |
| 2026-09-15 | [SPE8E626V2260](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4240015056644) | COMMUNICATION SYSTE | HOOSIER INDUSTRIAL SUPPLY, INC | $2,728.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4240015056644&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4240015056644
- 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/4240-01-505-6644/
JSON: https://nsnexplorer.com/api/nsn/4240-01-505-6644.json