The Elbow,flange to Hose, cataloged under National Stock Number 4730-01-058-4903, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Rolls-Royce Solutions America Inc. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-058-4903 |
| Primary Part Number | 5103663 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rolls-Royce Solutions America Inc |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES FIRST END |
| Flow Angle | 45.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | PLAIN BEVELED (HOSE) SECOND END |
| Nominal Length | 4.305 INCHES FIRST END IN |
| Nominal Inside Diameter Hose Accommodated | 2.656 INCHES SECOND END IN |
| Inlet Location | HIGH HEEL SINGLE INLET |
| Connection Type | THREADED INTERNAL PIPE INLET |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.429 INCHES FIRST END IN |
| Leg Length | 1.500 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.500 INCHES NOMINAL SECOND END IN |
| Nominal Thread Size | 0.750 INCHES INLET IN |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Width | 3.640 INCHES FIRST END IN |
| Material | STEEL OVERALL |
| Thread Series Designator | NPT INLET |
| Nominal Thickness | 0.388 INCHES FIRST 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 |
NSN 4730-01-058-4903 is a Elbow,flange to Hose, manufactured by Rolls-Royce Solutions America Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-058-4903 has 2 manufacturer part numbers on file: 002252T (Kovatch Corp.), 5103663 (Rolls-Royce Solutions America Inc).
Key specifications for 5103663: Flange Shape: OVAL WITH HOLES FIRST END; Flow Angle: 45.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: PLAIN BEVELED (HOSE) SECOND END. 19 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.