The Elbow,flange to Hose, cataloged under National Stock Number 4730-00-451-2735, 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 Cummins Inc.. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-00-451-2735 |
| Primary Part Number | 307810300 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 0.500 INCHES INLET IN |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | BEADED (HOSE) SECOND END |
| Connection Style | PLAIN (PIPE) INLET |
| Bolt Circle Nominal Diameter | 3.250 INCHES FIRST END IN |
| Nominal Inside Diameter Hose Accommodated | 3.000 INCHES SECOND END IN |
| Inlet Location | LOW 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 | 0.406 INCHES FIRST END IN |
| Leg Length | 1.250 INCHES NOMINAL INLET IN |
| Nominal Thread Size | 0.500 INCHES INLET IN |
| Nominal Outside Diameter | 4.000 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT INLET |
| Nominal Thickness | 0.250 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 4730-00-451-2735 is a Elbow,flange to Hose, manufactured by Cummins Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-451-2735 has 2 manufacturer part numbers on file: 307810300 (Cummins Inc.), AR50044 (Cummins Inc.).
Key specifications for 307810300: Flange Shape: ROUND WITH HOLES FIRST END; Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 0.500 INCHES INLET IN; Flange Face Design: PLAIN FIRST END. 20 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.