# NSN 4730-00-057-8574: Adapter, Straight, Flange To Hose

NSN 4730-00-057-8574 (also written 4730000578574; NIIN 00-057-8574) is an adapter, straight, flange to hose in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 7 manufacturer part numbers from 6 suppliers are on record. It was last purchased in Aug 2026.

## Identification

- NSN: 4730-00-057-8574 (4730000578574)
- NIIN: 00-057-8574 (000578574)
- Item name: ADAPTER,STRAIGHT,FLANGE TO HOSE
- 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 2026-11-06)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| CQQF | OPERATING PRESSURE | SINGLE RESPONSE POUNDS PER SQUARE INCH (PSI) MAXIMUM 1000.0 |
| AWLS | CONNECTION TYPE | SECOND END THREADED EXTERNAL HOSE GRIPPING |
| AWLS | CONNECTION TYPE | FIRST END FLANGE |
| TMQY | FURNISHED ITEMS AND QUANTITY | BOLT 4 AND LOCKNUT 4 AND SOCKET SEGMENT 2 |
| MATT | MATERIAL | NIPPLE ALUMINUM ALLOY |
| MATT | MATERIAL | NUT NICKEL ALLOY |
| AECS | BOLT HOLE QUANTITY | 6 |
| AEHZ | MAXIMUM OPERATING TEMP | SINGLE RESPONSE FAHRENHEIT 200.0 |
| AHNC | CONNECTION STYLE | — |
| ARKN | FLANGE SHAPE | FIRST END ROUND WITH HOLES |
| MATT | MATERIAL | FLANGE COPPER ALLOY |
| CWFR | NOMINAL OVERALL LENGTH | INCHES 4.400 |
| MATT | MATERIAL | BOLT NICKEL ALLOY |
| CWCD | NOMINAL OUTSIDE DIAMETER | FIRST END INCHES 5.560 |
| CWCK | NOMINAL THICKNESS | FIRST END INCHES 0.810 |
| CWCQ | BOLT HOLE NOMINAL DIAMETER | FIRST END INCHES 0.690 |
| CWCT | BOLT CIRCLE NOMINAL DIAMETER | FIRST END INCHES 4.438 |
| CWDF | FLANGE FACE DESIGN | FIRST END RAISED STRAIGHT |
| CWDH | RAISED FACE NOMINAL HEIGHT | FIRST END INCHES 0.062 |
| CWDL | RAISED FACE NOMINAL DIAMETER | FIRST END INCHES 2.240 |
| CWDW | NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED | SECOND END INCHES 2.500 |
| CWDZ | NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED | SECOND END INCHES 3.300 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 2621-225-03 ASSY 121 | 96169 | ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 704-4685606 F44 | 80064 | NAVAL SHIP SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| A2-40 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| CG40-40PK | 30327 | IMPERIAL | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| EF-1546A2-2-40 | 32142 | HYDRASEARCH COMPANY, LLC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| FC9527-3240-189 | 01276 | DANFOSS POWER SOLUTIONS II, LLC DIV FLUID CONVEYANCE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| MIL-H-24136 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |

## Contract awards

Newest first.

| Date | Award | Description | Recipient | Amount |
| --- | --- | --- | --- | --- |
| 2026-08-10 | [SPE7M426D60JH](https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730000578574) | ADAPTER, STRAIGHT, FLANGE TO HOSE | ITL LLC DBA ITL SOLUTIONS | $350,000.00 |

## Sources

- DLA DIBBS RFQs for this NSN: https://www.dibbs.bsm.dla.mil/RFQ/RFQNsn.aspx?value=4730000578574&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730000578574
- 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/4730-00-057-8574/
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