# NSN 4730-01-473-6667: Reducer, Boss

NSN 4730-01-473-6667 (also written 4730014736667; NIIN 01-473-6667) is a reducer, boss in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 1 manufacturer part number from 1 supplier is on record. It was last purchased in Oct 2026.

## Identification

- NSN: 4730-01-473-6667 (4730014736667)
- NIIN: 01-473-6667 (014736667)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-23)
- Acquisition method code: 3

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 3A |
| ACSP | REDUCER TYPE | CONCENTRIC |
| AGAV | END ITEM IDENTIFICATION | F18E/F |
| AHNC | CONNECTION STYLE | — |
| AWLS | CONNECTION TYPE | ALL ENDS THREADED EXTERNAL BOSS |
| CQJX | NOMINAL THREAD SIZE | SECOND END INCHES 0.438 |
| CQJX | NOMINAL THREAD SIZE | FIRST END INCHES 0.562 |
| CWFR | NOMINAL OVERALL LENGTH | INCHES 1.406 |
| CXCY | PART NAME ASSIGNED BY CONTROLLING AGENCY | FITTING,AIR FILTER |
| FEAT | SPECIAL FEATURES | ALSO PART COMES WITH DISC(P/N 821367-13) AND WIRE MESH (P/N 821367-12):ALTERED ITEM MADE FROM AN919-6S |
| MATT | MATERIAL | OVERALL STEEL COMP 347 |
| THSD | THREAD SERIES DESIGNATOR | FIRST END UNIFIED NATIONAL JOINT FINE (UNJF) |
| THSD | THREAD SERIES DESIGNATOR | SECOND END UNF |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 821367-1 | 73030 | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-20 | [SPE4AX22D9404/SPE4A627F1071](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730014736667) | REDUCER, BOSS | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | $842.38 |
| 2026-08-19 | [SPE4AX22D9404/SPE4A626F366U](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730014736667) | REDUCER, BOSS | HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE | $2,286.46 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730014736667&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730014736667
- 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/4730-01-473-6667/
JSON: https://nsnexplorer.com/api/nsn/4730-01-473-6667.json