The Flange,pipe, cataloged under National Stock Number 4730-01-025-4009, 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 18 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-025-4009 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Socket Diameter | 1.360 INCHES NOMINAL IN |
| Flange Diameter | 5.875 INCHES NOMINAL IN |
| Face Seating Surface Condition | GROUND |
| Nominal Pipe Size for Which Designed | 1.000 INCHES IN |
| Socket Depth | 0.500 INCHES NOMINAL IN |
| Operating Pressure and Type | 1500.0 POUNDS PER SQUARE INCH (PSI) GAS MAXIMUM REQUIRED AND 1500.0 POUNDS PER SQUARE INCH (PSI) OIL MAXIMUM REQUIRED AND 1500.0 POUNDS PER SQUARE INCH (PSI) WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS |
| Flange Section Style | RAISED FACE, SOCKET NECK |
| Style Designator | ROUND, ONE BOLT HOLE CIRCLE |
| Bolt Hole Diameter | 0.875 INCHES NOMINAL IN |
| Neck Height | 0.500 INCHES NOMINAL IN |
| Material Document and Classification | ASTM A182,GRADE F11 ASSN STD SINGLE MATERIAL RESPONSE |
| Bolt Hole Quantity | 4 |
| Bolt Circle Diameter | 4.000 INCHES NOMINAL IN |
| Raised Face Diameter | 2.000 INCHES NOMINAL IN |
| Raised Face Height | 0.250 INCHES NOMINAL IN |
| Material | STEEL |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY @MATERIAL |
| Thickness | 1.125 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 |
|---|---|
| MIL-F-18180 TYPE1 STYLE B | 4/1 Identification reference U.S. Government activity |
| B16.5 | 5/1 Secondary reference U.S. Government activity |
| B16-5-1IN IPS1500PSI-PP-FLGE | 5/1 Secondary reference U.S. Government activity |
| 155-1 | 3/1 Design control — primary reference Ati Ladish Llc Dba Ati Wah Chang Div Ati Forged Products - Cudahy |
NSN 4730-01-025-4009 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-025-4009: Socket Diameter: 1.360 INCHES NOMINAL IN; Flange Diameter: 5.875 INCHES NOMINAL IN; Face Seating Surface Condition: GROUND; Nominal Pipe Size for Which Designed: 1.000 INCHES IN. 18 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.