# NSN 4730-00-546-1766: Restrictor Unit, Fluid Flow

NSN 4730-00-546-1766 (also written 4730005461766; NIIN 00-546-1766) is a restrictor unit, fluid flow in Federal Supply Class 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. 4 manufacturer part numbers from 4 suppliers are on record. No purchases are on record yet.

## Identification

- NSN: 4730-00-546-1766 (4730005461766)
- NIIN: 00-546-1766 (005461766)
- 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 C: needs engineering source approval; other sources must qualify first. (observed 2026-10-10)
- Acquisition method code: 1

## Characteristics

| Code | Requirement | Reply |
| --- | --- | --- |
| BZRR | THREAD SERIES | LOCATION NOT OTHERWISE SPECIFIED UNF |
| ASDB | WIDTH ACROSS FLATS | INCHES NOMINAL 1.000 |
| ABHP | OVERALL LENGTH | INCHES MINIMUM 3.281 AND INCHES MAXIMUM 3.344 |
| BGST | PRESSURE RATING | POUNDS PER SQUARE INCH (PSI) NOMINAL 3000.0 |
| MATT | MATERIAL | BODY ALUMINUM ALLOY OR ALUMINUM |
| AWZY | END CONNECTION TYPE | LOCATION NOT OTHERWISE SPECIFIED THREADED FEMALE |
| CCFG | VALVE SIZE | INCHES 1.000 |
| CFPS | END CONNECTION COMPONENT TYPE AND SIZE FOR WHICH DESIGNED | 3/8 IN. OD TUBE |
| CWRR | FLOW RATE AND FLUID TYPE | GALLONS PER MINUTE OIL 0.7 |
| FEAT | SPECIAL FEATURES | W/FOUR SAFETY WIRE HOLES |
| AMSF | ORIFICE DIAMETER | INCHES NOMINAL 0.023 |
| AAJD | THREAD CLASS | 3B |
| AAJF | THREAD DIRECTION | LOCATION NOT OTHERWISE SPECIFIED RIGHT-HAND |
| APGF | DESIGN TYPE | STRAIGHT |
| ABMZ | DIAMETER | INCHES NOMINAL 0.984 |
| ABVK | THREAD SIZE DESIGNATOR | 9/16-18 |
| AFGA | OPERATING TEMP RANGE | FAHRENHEIT -65.0 TO 200.0 |
| AGAV | END ITEM IDENTIFICATION | KC-135 AIRCRAFT |
| MATT | MATERIAL | FILTER STEEL CORROSION RESISTING |
| AXAL | END CONNECTION SIMILARITY | IDENTICAL |

## Part numbers

| Part number | CAGE | Supplier | Source |
| --- | --- | --- | --- |
| 10-2465 | 81205 | THE BOEING COMPANY DIV DEFENSE | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 56447-4 | 05228 | PTI TECHNOLOGIES INC. | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 56447-4 | 64829 | ARVINMERITOR INC | [flis](https://www.dla.mil/Portals/104/Documents/InformationOperations/LogisticsInformationServices/FOIA/PUBLOG/) |
| 6F2002 | 99240 | CRISSAIR INC DIV ESCO TECHNOLOGIES | [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=4730005461766&category=nsn
- DLA DIBBS awards for this NSN: https://www.dibbs.bsm.dla.mil/Awards/AwdRecs.aspx?category=awdnsn&TypeSrch=cq&Value=4730005461766
- 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/4730-00-546-1766/
JSON: https://nsnexplorer.com/api/nsn/4730-00-546-1766.json