The Elbow,flange to Hose, cataloged under National Stock Number 4730-00-491-6908, 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 Northrop Grumman Systems Corporation. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-491-6908 |
| Primary Part Number | 123EC51042-1 |
| Item Name | Elbow,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Shape | ROUND WITH HOLES FIRST END |
| Flow Angle | 25.0 DEGREES |
| Flange Face Design | PLAIN FIRST END |
| Connection Style | BEADED (HOSE) SECOND END |
| Bolt Circle Nominal Diameter | 2.062 INCHES FIRST END IN |
| Nominal Inside Diameter Hose Accommodated | 1.500 INCHES SECOND END IN |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Material Document and Classification | QQ-A-250/8,T 0 FED SPEC SINGLE MATERIAL RESPONSE FLANGE |
| Material Document and Classification | WW-T-700/4,T 0 FED SPEC SINGLE MATERIAL RESPONSE ELBOW |
| Bolt Hole Nominal Diameter | 0.207 INCHES FIRST END IN |
| Nominal Outside Diameter | 3.500 INCHES FIRST END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Nominal Thickness | 0.040 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 |
| Part Number | Manufacturer |
|---|---|
| 123EC51042-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 123EC51042-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
| 123EC51042 | D/9 Drawing number reference only Northrop Grumman Systems Corporation |
NSN 4730-00-491-6908 is a Elbow,flange to Hose, manufactured by Northrop Grumman Systems Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-491-6908 has 1 manufacturer part number on file: 123EC51042-1 (Northrop Grumman Systems Corporation).
Key specifications for 123EC51042-1: Flange Shape: ROUND WITH HOLES FIRST END; Flow Angle: 25.0 DEGREES; Flange Face Design: PLAIN FIRST END; Connection Style: BEADED (HOSE) SECOND END. 14 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.