The Flange,pipe, cataloged under National Stock Number 4730-01-395-7304, 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 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-395-7304 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Socket Diameter | 5.905 INCHES NOMINAL IN |
| Flange Diameter | 6.930 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Socket Depth | 1.150 INCHES NOMINAL IN |
| Tube Outside Diameter for Which Designed | 5.875 INCHES NOMINAL IN |
| Flange Section Style | PLAIN FACE, SOCKET NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.516 INCHES NOMINAL IN |
| Neck Height | 1.640 INCHES NOMINAL IN |
| Unthreaded Reducer Hole Diameter | 3.000 INCHES NOMINAL IN |
| Features Provided | COUNTERBORED BOLT HOLES |
| Reducer Flange Hole Type | CONCENTRIC |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 4.500 INCHES NOMINAL IN |
| Material | STEEL COMP 1026 |
| Thickness | 0.370 INCHES NOMINAL 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 |
|---|---|
| 1400034 | 3/9 Design control — primary reference Landoll Corporation Dba Landoll Corporation Drexel Division Div Drexel |
NSN 4730-01-395-7304 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-395-7304: Socket Diameter: 5.905 INCHES NOMINAL IN; Flange Diameter: 6.930 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Socket Depth: 1.150 INCHES NOMINAL IN. 16 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.