The Nut,tube Coupling, cataloged under National Stock Number 4730-00-204-0808, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-204-0808 |
| Primary Part Number | 179821 |
| Item Name | Nut,tube Coupling |
| FSC / FSG | 4730 / 47 — No Item Name Available |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Thread Pitch Diameters | +1.1460 TO 1.1507 INCHES IN |
| Length to Shoulder | 0.860 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Seat Angle | 45.00 DEGREES NOMINAL |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Material Document and Classification | AMS 4120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nut Height | 1.040 INCHES MINIMUM AND 1.060 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 16 |
| Smallest Inside Diameter | 0.860 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN |
| Thread Series | UNS |
| Width Across Flats | 1.356 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.187 INCHES IN |
| Nominal Tube Outside Diameter | 0.750 INCHES IN |
| Nut Style | TUBE COUPLING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 179821 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
NSN 4730-00-204-0808 is a Nut,tube Coupling, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 4730 (No Item Name Available). Status: active.
NSN 4730-00-204-0808 has 1 cross-referenced part number: 179821 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
There is 1 known substitute for 4730-00-204-0808: 5306-00-018-0082. Verify interchangeability with system specifications before substitution.
Key specifications for 179821: Thread Pitch Diameters: +1.1460 TO 1.1507 INCHES IN; Length to Shoulder: 0.860 INCHES MINIMUM AND 0.880 INCHES MAXIMUM IN; Seat Angle: 45.00 DEGREES NOMINAL; Material: ALUMINUM ALLOY 2024 OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.