The Nut,tube Coupling, cataloged under National Stock Number 4730-00-278-5450, 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 Adams Aircraft International Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-278-5450 |
| Primary Part Number | AN805-3 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Adams Aircraft International Inc |
| Status | ACTIVE |
| Nut Style | TUBE COUPLING |
| Nominal Tube Outside Diameter | 0.188 INCHES IN |
| Nominal Thread Size | 0.375 INCHES IN |
| Thread Series | UNF |
| Material | COPPER ALLOY OVERALL |
| Nut Height | 0.500 INCHES NOMINAL IN |
| Fabrication Method | FORGED OR MACHINED |
| Thread Direction | RIGHT-HAND |
| Length to Shoulder | 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Width Across Flats | 0.432 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-B-626,CP 21 OR 22 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Quantity Per Inch | 24 |
| Thread Class | 3B |
| Smallest Inside Diameter | 0.242 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| AN805-3 | Adams Aircraft International Inc (USA) |
| E23901 | Drager Safety Ag & Co. Kgaa (DEU) |
| MIL-DTL-6001 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| E23901 | B/e Aerospace Systems Gmbh Div Life Support Systems Europe (DEU) |
| AN805-3 | Aeronautical Standards Group Dept of Navy and Air Force (USA) |
| 6192 | Raytheon Technical Services Company (USA) |
NSN 4730-00-278-5450 is a Nut,tube Coupling, manufactured by Adams Aircraft International Inc, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-278-5450 has 6 cross-referenced part numbers: AN805-3 (Adams Aircraft International Inc), E23901 (Drager Safety Ag & Co. Kgaa), MIL-DTL-6001 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), E23901 (B/e Aerospace Systems Gmbh Div Life Support Systems Europe), AN805-3 (Aeronautical Standards Group Dept of Navy and Air Force) and 1 more.
There are 4 known substitutes for 4730-00-278-5450: 6240-00-155-8653, 2835-00-787-5059, 9540-00-806-3940 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for AN805-3: Nut Style: TUBE COUPLING; Nominal Tube Outside Diameter: 0.188 INCHES IN; Nominal Thread Size: 0.375 INCHES IN; Thread Series: UNF. 14 total characteristics are documented in the Federal Logistics Information System.