The Flange,pipe, cataloged under National Stock Number 4730-01-309-8147, 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 Derbyshire Machine & Tool Co. Government technical data includes 14 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-309-8147 |
| Primary Part Number | 2621-228-02 PC 109 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Socket Diameter | 5.566 INCHES NOMINAL IN |
| Flange Diameter | 10.120 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Operating Pressure and Type | 250.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Flange Section Style | PLAIN FACE, SOCKET BRAZING NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.688 INCHES NOMINAL IN |
| Neck Height | 1.060 INCHES NOMINAL IN |
| Reducer Flange Hole Type | CONCENTRIC |
| Bolt Hole Quantity | 12 |
| Bolt Circle Diameter | 8.875 INCHES NOMINAL IN |
| Bore Diameter | 5.151 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Thickness | 1.220 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 |
| Part Number | Manufacturer |
|---|---|
| 2621-228-02 PC 109 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 2621-228-02 PIECE 109 | 5/2 Secondary reference U.S. Government activity |
| 13-97-0232 | 5/2 Secondary reference U.S. Government activity |
| 2621-228-02-109 | 5/2 Secondary reference U.S. Government activity |
| 845-4687676 | 5/9 Secondary reference U.S. Government activity |
| 4687676-109 | 3/2 Design control — primary reference U.S. Government activity |
| 2621-228-02 | D/9 Drawing number reference only U.S. Government activity |
| 4687676 | D/9 Drawing number reference only U.S. Government activity |
| 845-4687676-109 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-01-309-8147 is a Flange,pipe, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-309-8147 has 1 manufacturer part number on file: 2621-228-02 PC 109 (Derbyshire Machine & Tool Co).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-314-2138. Verify interchangeability with system specifications before substitution.
Key specifications for 2621-228-02 PC 109: Socket Diameter: 5.566 INCHES NOMINAL IN; Flange Diameter: 10.120 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Operating Pressure and Type: 250.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS. 14 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.