The Flange,pipe, cataloged under National Stock Number 4730-01-233-9031, 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 15 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-233-9031 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Diameter | 24.000 INCHES NOMINAL IN |
| Face Seating Surface Condition | GROUND |
| Nominal Pipe Size for Which Designed | 6.125 INCHES IN |
| Flange Section Style | PLAIN FACE, LONG NECK |
| Style Designator | ROUND, TWO BOLT HOLE CIRCLES |
| Outer Bolt Circle Hole Diameter | 0.656 INCHES NOMINAL IN |
| Neck Height | 0.625 INCHES NOMINAL IN |
| Inner Bolt Circle Hole Diameter | 0.656 INCHES NOMINAL IN |
| Outer Bolt Circle Hole Quantity | 9 |
| Inner Bolt Circle Diameter | 7.625 INCHES NOMINAL IN |
| Material | STEEL |
| Neck Diameter | 8.874 INCHES NOMINAL IN |
| Outer Bolt Circle Diameter | 10.250 INCHES NOMINAL IN |
| Inner Bolt Circle Hole Quantity | 8 |
| Thickness | 0.750 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 |
|---|---|
| SSN593-520-1862118 | D/9 Drawing number reference only U.S. Government activity |
| SSN593-520-1862118 ITEM 2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-233-9031 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-233-9031: Flange Diameter: 24.000 INCHES NOMINAL IN; Face Seating Surface Condition: GROUND; Nominal Pipe Size for Which Designed: 6.125 INCHES IN; Flange Section Style: PLAIN FACE, LONG NECK. 15 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.