The Flange,pipe, cataloged under National Stock Number 4730-01-009-9983, 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16 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-009-9983 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Flange Diameter | 8.625 INCHES NOMINAL IN |
| Face Seating Surface Condition | UNFINISHED |
| Flange Section Style | PLAIN FACE, LONG NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.531 INCHES NOMINAL IN |
| Neck Height | 3.000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-601,T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-596,CL 6,T6 FED SPEC 2ND MATERIAL RESPONSE |
| Nominal Thread Size | 0.500 INCHES IN |
| Bolt Hole Quantity | 6 |
| Bolt Circle Diameter | 7.625 INCHES NOMINAL IN |
| Screw Thread Series Designator | NC |
| Surface Treatment | ANODIZE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 13 |
| Material | ALUMINUM ALLOY 356.0 OR ALUMINUM |
| 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 |
|---|---|
| 63C2698 | 5/9 Secondary reference U.S. Government activity |
| 63C2698 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4730-01-009-9983 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-009-9983: Flange Diameter: 8.625 INCHES NOMINAL IN; Face Seating Surface Condition: UNFINISHED; Flange Section Style: PLAIN FACE, LONG NECK; Style Designator: ROUND, ONE BOLT HOLE CIRCLE. 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.