# NSN 4240-00-397-3819: Coupling, Tee Adapter Bud

NSN 4240-00-397-3819 (also written 4240003973819; NIIN 00-397-3819) is a coupling, tee adapter bud in Federal Supply Class 4240, Safety and Rescue Equipment. 2 manufacturer part numbers from 2 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4240-00-397-3819 (4240003973819)
- NIIN: 00-397-3819 (003973819)
- Item name: COUPLING,TEE ADAPTER BUD
- 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: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| TEXT | GENERAL CHARACTERISTICS ITEM DESCRIPTION | ONE 1/4 IN. MALE ADAPTER,ONE 1/4 IN. TEE,TWO 1/4 IN. ADAPTERS,TWO COUPLINGS |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 92047 | 55799 | MINE SAFETY APPLIANCES COMPANY | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 92047 | 55977 | ATMOSPHERIC INSTRUMENTATION RESEARCH INC DBA A I R 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=4240003973819&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4240003973819
- 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/4240-00-397-3819/
JSON: https://nsnexplorer.com/api/nsn/4240-00-397-3819.json