The Flange,pipe, cataloged under National Stock Number 4730-00-174-5944, 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 20 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-00-174-5944 |
| Item Name | Flange,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Socket Diameter | 2.406 INCHES NOMINAL IN |
| Flange Diameter | 6.500 INCHES NOMINAL IN |
| Face Seating Surface Condition | MACHINED |
| Nominal Pipe Size for Which Designed | 2.000 INCHES IN |
| Socket Depth | 0.625 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN |
| Maximum Operating Temp and Media for Which Designed | 850.0 FAHRENHEIT STEAM AND 425.0 FAHRENHEIT WATER DEGF |
| Operating Pressure and Type | 600.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 1000.0 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 | 0.688 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN |
| Neck Height | 0.422 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-872 MIL SPEC SINGLE MATERIAL RESPONSE |
| Departure From Cited Designator | AS MODIFIED BY FLANGE,PIPE,2 IN.NOM PIPE SIZE IN |
| Bolt Hole Quantity | 8 |
| Bolt Circle Diameter | 5.000 INCHES NOMINAL IN |
| Raised Face Diameter | 3.641 INCHES MINIMUM AND 4.250 INCHES MAXIMUM IN |
| Raised Face Height | 0.250 INCHES NOMINAL IN |
| Surface Treatment | PRIMER |
| Material | STEEL |
| Thickness | 1.000 INCHES MINIMUM AND 1.078 INCHES MAXIMUM 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 |
|---|---|
| B16,5 | 3/1 Design control — primary reference U.S. Government activity |
| 5000S4823-64496 | 5/9 Secondary reference U.S. Government activity |
NSN 4730-00-174-5944 is a Flange,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-00-174-5944: Socket Diameter: 2.406 INCHES NOMINAL IN; Flange Diameter: 6.500 INCHES NOMINAL IN; Face Seating Surface Condition: MACHINED; Nominal Pipe Size for Which Designed: 2.000 INCHES IN. 20 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.