The Flange,pipe, cataloged under National Stock Number 4730-00-252-3507, 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15 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-252-3507 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Socket Diameter | 1.900 INCHES NOMINAL IN |
| Flange Diameter | 5.000 INCHES MINIMUM AND 5.031 INCHES MAXIMUM IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 1.500 INCHES IN |
| Maximum Operating Temp and Media for Which Designed | 150.0 FAHRENHEIT GAS AND 150.0 FAHRENHEIT OIL AND 450.0 FAHRENHEIT STEAM AND 150.0 FAHRENHEIT WATER DEGF |
| Operating Pressure and Type | 225.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 225.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 225.0 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 | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Neck Height | 1.000 INCHES NOMINAL IN |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 3.875 INCHES NOMINAL IN |
| Bore Diameter | 1.750 INCHES NOMINAL IN |
| Material | COPPER ALLOY |
| Thickness | 0.438 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 |
|---|---|
| 810-1385892-1 1/2 PRGR3 | 5/9 Secondary reference U.S. Government activity |
| 810-1385892-1 1/2 PR | 3/2 Design control — primary reference U.S. Government activity |
| 53-348-1 1-2IN | 5/9 Secondary reference U.S. Government activity |
| 5170-300 | 5/1 Secondary reference Flagg Stanley G & Co Inc Dba Flagg Brass |
| 3674-1 1-2INCH | 5/9 Secondary reference The Walworth Company |
| 00699067579316 | 5/1 Secondary reference Flagg Stanley G & Co Inc Dba Flagg Brass |
NSN 4730-00-252-3507 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-252-3507: Socket Diameter: 1.900 INCHES NOMINAL IN; Flange Diameter: 5.000 INCHES MINIMUM AND 5.031 INCHES MAXIMUM IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 1.500 INCHES IN. 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.