The Elbow,flange to Tube, cataloged under National Stock Number 4730-00-407-7776, 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 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-407-7776 |
| Item Name | Elbow,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Flow Angle | 71.5 DEGREES |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | SHOULDERED (GASKET) (TUBE) FIRST END |
| Nominal Length | 3.078 INCHES SECOND END IN |
| Tubing Wall Nominal Thickness for Which Designed | 0.094 INCHES FIRST END IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED EXTERNAL TUBE FIRST END |
| Material Document and Classification | QQ-A-601,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bolt Hole Nominal Diameter | 0.328 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 2.000 INCHES FIRST END IN |
| Leg Length | 1.656 INCHES NOMINAL SECOND END IN |
| Leg Length | 2.938 INCHES NOMINAL FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 2.375 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 SECOND END |
| Nominal Width | 3.078 INCHES SECOND END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 2.375 INCHES SECOND END IN |
| Material | ALUMINUM ALLOY 356.0 OVERALL |
| Nominal Thickness | 0.203 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 |
|---|---|
| 215-53405-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-407-7776 is a Elbow,flange to Tube, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-407-7776: Flange Shape: RECTANGULAR WITH HOLES SECOND END; Flow Angle: 71.5 DEGREES; Flange Face Design: PLAIN SECOND END; Connection Style: SHOULDERED (GASKET) (TUBE) FIRST 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.