The Elbow,flange to Tube, cataloged under National Stock Number 4730-01-330-4556, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-330-4556 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Recess Nominal Depth | 0.625 INCHES SECOND END IN |
| Flange Shape | ROUND SECOND END |
| Flow Angle | 45.0 DEGREES |
| Flange Face Design | RECESSED STRAIGHT SECOND END |
| Connection Style | FLARED (TUBE) FIRST END |
| Connection Type | FLANGE SECOND END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Nominal Outside Diameter Tube Accommodated | 1.250 INCHES FIRST END IN |
| Operating Pressure | 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 1.500 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.000 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 1.625 INCHES FIRST END IN |
| Seat Angle | 45.0 DEGREES FIRST END |
| Maximum Operating Temp | 135.0 CELSIUS SINGLE RESPONSE DEGC |
| Nominal Outside Diameter | 1.844 INCHES SECOND END IN |
| Surface Treatment | CADMIUM OUTSIDEUNABLE TO DECODE |
| Surface Treatment | CADMIUM INSIDEUNABLE TO DECODE |
| Media for Which Designed | FUEL FIRST RESPONSEUNABLE TO DECODE |
| Media for Which Designed | OIL SECOND RESPONSEUNABLE TO DECODE |
| Thread Class | 3A FIRST END A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | STEEL OVERALLUNABLE TO DECODE |
| Thread Series Designator | UN FIRST END |
| Nominal Thickness | 0.189 INCHES SECOND END IN |
| Recess Nominal Diameter | 1.078 INCHES SECOND END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| AS4875 | 5/9 Secondary reference U.S. Government activity |
| SAE-AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| MS20761-20 | 2/2 Government specification standardization U.S. Government activity |
| AS4875 | 5/9 Secondary reference Sae International Dba Sae International |
NSN 4730-01-330-4556 is a Elbow,flange to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-330-4556: Recess Nominal Depth: 0.625 INCHES SECOND END IN; Flange Shape: ROUND SECOND END; Flow Angle: 45.0 DEGREES; Flange Face Design: RECESSED STRAIGHT SECOND END. 25 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.