# NSN 4730-01-523-2646: Restrictor Unit, Fluid Flow

NSN 4730-01-523-2646 (also written 4730015232646; NIIN 01-523-2646) is a restrictor unit, fluid flow in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 2 manufacturer part numbers from 1 supplier are on record. No purchases are on record yet.

## Identification

- NSN: 4730-01-523-2646 (4730015232646)
- NIIN: 01-523-2646 (015232646)
- Item name: RESTRICTOR UNIT,FLUID FLOW
- 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 G: the government has a complete data package and the rights to use it. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| MATT | MATERIAL | BODY COPPER ALLOY 706 |
| CRTL | CRITICALITY CODE JUSTIFICATION | FEAT |
| CWRR | FLOW RATE AND FLUID TYPE | GALLONS PER MINUTE WATER 157.0 |
| FEAT | SPECIAL FEATURES | WEAPON SYSTEM ESSENTIAL; 18 PLATES WITH 25 .375" DIAMETER AND ONE WITH .438" DIAMETER HOLES; 5" NPS C.O.R.D. BODY WITH 3" NPS REDUCING FLANGES |
| AXAL | END CONNECTION SIMILARITY | IDENTICAL |
| BGST | PRESSURE RATING | POUNDS PER SQUARE INCH (PSI) NOMINAL 150.0 |
| ABHP | OVERALL LENGTH | INCHES NOMINAL 18.830 |
| AFGA | OPERATING TEMP RANGE | FAHRENHEIT -32.0 TO 122.0 |
| AGAV | END ITEM IDENTIFICATION | SHIP C.O.R.D. |
| AMSF | ORIFICE DIAMETER | INCHES NOMINAL 0.375 |
| APGF | DESIGN TYPE | STRAIGHT |
| AWZY | END CONNECTION TYPE | ALL CONNECTIONS BUTT WELD |
| CCFG | VALVE SIZE | INCHES 3.000 |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 502-7526175 ASSY A1 | 53711 | NAVAL SEA SYSTEMS COMMAND | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 7526175 | 53711 | NAVAL SEA SYSTEMS COMMAND | [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=4730015232646&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730015232646
- 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/4730-01-523-2646/
JSON: https://nsnexplorer.com/api/nsn/4730-01-523-2646.json