# NSN 4730-01-031-2839: Adapter, Straight, Flange To Boss

NSN 4730-01-031-2839 (also written 4730010312839; NIIN 01-031-2839) is an adapter, straight, flange to boss in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 4 manufacturer part numbers from 3 suppliers are on record. The government has 1 open solicitation for it.

## Identification

- NSN: 4730-01-031-2839 (4730010312839)
- NIIN: 01-031-2839 (010312839)
- Item name: ADAPTER,STRAIGHT,FLANGE TO 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 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| AAJD | THREAD CLASS | 2A |
| AECS | BOLT HOLE QUANTITY | 6 |
| AHNC | CONNECTION STYLE | — |
| ARKN | FLANGE SHAPE | FIRST END ROUND WITH HOLES |
| AWLS | CONNECTION TYPE | SECOND END THREADED EXTERNAL BOSS |
| AWLS | CONNECTION TYPE | FIRST END FLANGE |
| CQJX | NOMINAL THREAD SIZE | SECOND END INCHES 1.875 |
| CWCD | NOMINAL OUTSIDE DIAMETER | FIRST END INCHES 0.500 |
| CWCK | NOMINAL THICKNESS | FIRST END INCHES 0.437 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | FIRST END INCHES 0.562 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | FIRST END INCHES 3.938 |
| CWDF | FLANGE FACE DESIGN | FIRST END PLAIN |
| CWFR | NOMINAL OVERALL LENGTH | INCHES 6.219 |
| MATT | MATERIAL | OVERALL COPPER ALLOY |
| THSD | THREAD SERIES DESIGNATOR | SECOND END UNF |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 115654001PC34 | 07309 | BIRD-JOHNSON PROPELLER COMPANY, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 4730PL1289903 | 9009H | JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 525-141-142 | 85181 | DEUBLIN COMPANY, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| C156SKDD963-10 | 07309 | BIRD-JOHNSON PROPELLER COMPANY, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Open solicitations

| Solicitation | Quantity | Closes | Link |
| --- | --- | --- | --- |
| SPE7M3-27-T-0297 | 16 | 2026-10-23 | [DIBBS](https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730010312839&category=nsn) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-10-06 | [SPE7M027V0046](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730010312839) | ADAPTER, STRAIGHT, FLANGE TO BOSS | — | $61,064.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730010312839&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730010312839
- 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/4730-01-031-2839/
JSON: https://nsnexplorer.com/api/nsn/4730-01-031-2839.json