The Flange,pipe, cataloged under National Stock Number 4730-00-451-1791, 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 Amz Alabama Inc.. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-00-451-1791 |
| Primary Part Number | 2584501 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Amz Alabama Inc. |
| Status | ACTIVE |
| Flange Diameter | 7.775 INCHES NOMINAL IN |
| Face Seating Surface Condition | GROUND |
| Flange Section Style | BEVELED FACE, RAISED NECK |
| Style Designator | ROUND, TWO BOLT HOLE CIRCLES |
| Outer Bolt Circle Hole Diameter | 0.800 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN |
| Neck Height | 0.635 INCHES NOMINAL IN |
| Bevel Depth | 0.062 INCHES NOMINAL IN |
| Inner Bolt Circle Hole Diameter | 0.498 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN |
| Outer Bolt Circle Hole Quantity | 8 |
| Reducer Flange Hole Type | ECCENTRIC |
| Surface Treatment | CADMIUM |
| Inner Bolt Circle Diameter | 5.120 INCHES NOMINAL IN |
| Material | STEEL |
| Outer Bolt Circle Diameter | 5.774 INCHES NOMINAL IN |
| Inner Bolt Circle Hole Quantity | 1 |
| Thickness | 0.115 INCHES MINIMUM AND 0.120 INCHES MAXIMUM 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 |
|---|---|
| 2584501 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2584501 | 5/2 Secondary reference U.S. Government activity |
| 2584501 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-00-451-1791 is a Flange,pipe, manufactured by Amz Alabama Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-451-1791 has 1 manufacturer part number on file: 2584501 (Amz Alabama Inc.).
Key specifications for 2584501: Flange Diameter: 7.775 INCHES NOMINAL IN; Face Seating Surface Condition: GROUND; Flange Section Style: BEVELED FACE, RAISED NECK; Style Designator: ROUND, TWO BOLT HOLE CIRCLES. 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.