The Nut,tube Coupling, cataloged under National Stock Number 4730-00-201-3081, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-201-3081 |
| Primary Part Number | 646A078H05 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| Status | CANCELLED |
| Nut Height | 0.625 INCHES NOMINAL IN |
| Width Across Flats | 0.688 INCHES NOMINAL IN |
| Width Across Flats | 0.688 INCHES NOMINAL IN |
| Material | COPPER ALLOY OVERALL |
| Nut Style | TUBE COUPLING |
| Thread Series | UNF |
| Smallest Inside Diameter | 0.440 INCHES NOMINAL IN |
| Nominal Thread Size | 0.562 INCHES IN |
| Material | COPPER ALLOY OVERALL |
| Nominal Tube Outside Diameter | 0.437 INCHES IN |
| Fabrication Method | MACHINED |
| Nominal Thread Size | 0.562 INCHES IN |
| Nut Style | TUBE COUPLING |
| Thread Direction | RIGHT-HAND |
| Smallest Inside Diameter | 0.440 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 18 |
| Nominal Tube Outside Diameter | 0.437 INCHES IN |
| Thread Quantity Per Inch | 18 |
| Thread Class | 2B |
| Thread Series | UNF |
| Nut Height | 0.625 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 646A078H05 PRIMARY | Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA) |
| 7 PRIMARY | Western Enterprises Div of Scott and Fetzer Co (USA) |
| 12722082-1 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| N20 | Superior Products Div Opw Ces (USA) |
NSN 4730-00-201-3081 is a Nut,tube Coupling, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-201-3081 has 4 cross-referenced part numbers: 646A078H05 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 7 (Western Enterprises Div of Scott and Fetzer Co), 12722082-1 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), N20 (Superior Products Div Opw Ces).
There are 7 known substitutes for 4730-00-201-3081: 5330-00-173-3156, 5999-00-417-9561, 5905-00-542-7808 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 646A078H05: Nut Height: 0.625 INCHES NOMINAL IN; Width Across Flats: 0.688 INCHES NOMINAL IN; Width Across Flats: 0.688 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL. 21 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-201-3081 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.