# NSN 4730-01-186-6005: Reducer, Boss

NSN 4730-01-186-6005 (also written 4730011866005; NIIN 01-186-6005) is a reducer, boss in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 6 manufacturer part numbers from 3 suppliers are on record. It was last purchased in Sep 2026.

## Identification

- NSN: 4730-01-186-6005 (4730011866005)
- NIIN: 01-186-6005 (011866005)
- Item name: REDUCER,BOSS
- Federal Supply Class: [FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings](https://nsnexplorer.com/fsc/4730/)
- Federal Supply Group: [FSG 47](https://nsnexplorer.com/group/47/)
- Acquisition method suffix code: AMSC T: handled under qualified products list procedures. (observed 2026-10-23)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| ACSP | REDUCER TYPE | CONCENTRIC |
| AHNC | CONNECTION STYLE | — |
| AWLS | CONNECTION TYPE | ALL ENDS THREADED EXTERNAL BOSS |
| CQJX | NOMINAL THREAD SIZE | FIRST END INCHES 0.562 |
| CQJX | NOMINAL THREAD SIZE | SECOND END INCHES 0.438 |
| CWFR | NOMINAL OVERALL LENGTH | INCHES 1.406 |
| MATT | MATERIAL | OVERALL ALUMINUM ALLOY 7075 |
| SFTT | SURFACE TREATMENT | OVERALL ANODIZE |
| THSD | THREAD SERIES DESIGNATOR | FIRST END UNIFIED NATIONAL JOINT FINE (UNJF) |
| THSD | THREAD SERIES DESIGNATOR | SECOND END UNF |
| ZZZK | SPECIFICATION/STANDARD DATA | GOVERNMENT STANDARD 88044-AN919 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| AN919-6W | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS4841 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS4841 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS5174W0604 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| AS5174W0604 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| SAE-AS4841 | 0U583 | SAE INTERNATIONAL DBA SAE INTERNATIONAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-09-10 | [SPE7M326V4539](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730011866005) | REDUCER, BOSS | INLAND MACHINE COMPANY INC. DBA INLAND MACHINE CO INC | $6,189.57 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730011866005&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730011866005
- 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/4730-01-186-6005/
JSON: https://nsnexplorer.com/api/nsn/4730-01-186-6005.json