The Nut,tube Coupling, cataloged under National Stock Number 4730-00-278-5449, 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 Aeronautical Standards Group Dept of Navy and Air Force. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4730-00-278-5449 |
| Primary Part Number | AN805-6 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Aeronautical Standards Group Dept of Navy and Air Force |
| Status | CANCELLED |
| Fabrication Method | MACHINED |
| Smallest Inside Diameter | 0.473 INCHES MINIMUM AND 0.477 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Width Across Flats | 0.744 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN |
| Nut Height | 0.562 INCHES NOMINAL IN |
| Material Document and Classification | QQ-B-626,CP 21 OR 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Style | TUBE COUPLING |
| Thread Class | 3B |
| Nominal Thread Size | 0.625 INCHES IN |
| Thread Quantity Per Inch | 18 |
| Thread Series | UNF |
| Nominal Tube Outside Diameter | 0.375 INCHES IN |
| Length to Shoulder | 0.433 INCHES MINIMUM AND 0.443 INCHES MAXIMUM IN |
| Material | COPPER ALLOY OVERALL |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AN805-6 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| AN805 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| MIL-F-6001 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-DTL-6001 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 156D2 | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
NSN 4730-00-278-5449 is a Nut,tube Coupling, manufactured by Aeronautical Standards Group Dept of Navy and Air Force, classified under FSC 4730 (No Item Name Available). Status: cancelled.
NSN 4730-00-278-5449 has 5 cross-referenced part numbers: AN805-6 (Aeronautical Standards Group Dept of Navy and Air Force), AN805 (Aeronautical Standards Group Dept of Navy and Air Force), MIL-F-6001 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-6001 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 156D2 (Curtiss-Wright Controls, Inc. Div Actuation Division).
There are 12 known substitutes for 4730-00-278-5449: 4730-00-203-4681, 4730-00-277-6403, 4730-00-278-0830 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for AN805-6: Fabrication Method: MACHINED; Smallest Inside Diameter: 0.473 INCHES MINIMUM AND 0.477 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND; Width Across Flats: 0.744 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN. 14 total characteristics are documented in the Federal Logistics Information System.
NSN 4730-00-278-5449 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.